Business Intelligence Analysts turn raw data into decisions. This article breaks down what the job really involves — the daily tasks, skills employers demand, career growth opportunities, and the steps you can take to get started in 2025.
Every line of code you write has an invisible carbon footprint. Software now accounts for 2-4% of global greenhouse gas emissions—roughly equivalent to the aviation industry. But here’s what’s exciting: you can dramatically reduce this impact without sacrificing functionality. Green coding isn’t about building fewer features—it’s about building them smarter. In this comprehensive guide, discover 13 actionable techniques that will help you write energy-efficient code, reduce operational costs by up to 70%, and position yourself as a forward-thinking developer in an industry increasingly focused on sustainability.
Level up your JavaScript skills with practical tips beyond the basics. From closures and async/await to modern ES features, modules, and design patterns, this guide shows you how to write cleaner, faster, and more professional code.
Web development in 2025 goes beyond just coding. From AI-powered tools to sustainable design and zero-trust security, these 11 best practices will help you build faster, safer, and more future-ready applications.
Learn how to open the terminal in Visual Studio Code step by step. From keyboard shortcuts to the menu bar and Command Palette, this guide covers every method, plus tips for multiple terminals, troubleshooting, and FAQs about using VS Code.
Explore the best cybersecurity bootcamps of 2025 including Springboard with a job guarantee, Evolve Security Academy ranked #1 for five years, Fullstack Academy with university-backed SOC training, and BrainStation for budget-friendly certification prep.
AI agents are autonomous software systems that combine reasoning, planning, memory, and action to achieve user goals. Unlike chatbots or assistants, they adapt over time,
While Software Engineering builds the apps you use daily, Computer Science develops the algorithms that power AI breakthroughs, and Computer Engineering creates the hardware running it all. With salaries ranging from $70,000 to $450,000+ and vastly different daily responsibilities, understanding these 11 key differences will save you years of career uncertainty
Want to work at the heart of innovation? These 15 San Francisco tech companies are leading in AI, cloud, fintech and design while paying some of the industry’s top salaries. From global giants like Google, Meta and Apple to fast growing disruptors like Stripe, Cloudflare and Figma, each offers world class projects, benefits and career growth opportunities.
Yes, MetaMask is safe and can be trusted. The wallet software has never been hacked and is used by over 100 million people worldwide. MetaMask is owned by ConsenSys and operates on open-source code that security researchers can audit.
A coding bootcamp is a career investment, not a cost. Learn about ISAs, private loans, scholarships and grants and various other ways to pay for your coding bootcamp.
11 reasons Bitcoin drops: Fed policy, regulations, sentiment, technicals, institutions, macro events, exchanges, correlations & more. Expert guide.
ChatPRD – AI for PRDs, 75% faster creation
Notion AI – Smart docs, 50% less time searching info
Rytr – Marketing copy, 80% faster content creation
Perplexity AI – Real-time market research, 70% faster research
And the list continues…
Quick Takeaways
Medical specialists and surgeons command the highest absolute salaries ($300K+)
AI and machine learning roles show the fastest salary growth
Location choice within California significantly impacts earning potential
Emerging fields offer first-mover advantages for career growth
Cost of living requires strategic financial planning despite high salaries
AI-resistant careers combining human judgment with technical skills offer best long-term prospects
California’s diverse economy provides multiple pathways to high earnings
Java and JavaScript may sound alike but they are completely different. Discover their real histories, how they work, what jobs they lead to, and which one might be the better fit for you.
Five Major Differences from the Article:
Compilation vs Interpretation
Type Systems and Error Handling
Execution Environments
Programming Paradigm
Performance and Speed
TL;DR If you are thinking that decentraland career quest is JUST A REGULAR GAME, you absolutely, are missing half the plot! What if I tell
TL; DR As blockchain technology continues to evolve, Solana has emerged as one of the most efficient and scalable platforms for decentralized applications. For developers
TL;DR Top Technical Web3 Jobs (2025): Top Non-Technical Web3 Jobs (2025): The Web3 ecosystem is maturing rapidly as blockchain technology evolves beyond its crypto-native roots.
Discover what enterprise blockchain is, how it works, and why businesses are adopting it. Learn about its key benefits, real-world use cases, and future impact in this ultimate guide.
TL;DR Step Description 1 Follow top Web3 builders on Twitter to stay updated 2 Learn via video tutorials on YouTube 3 Build simple projects like
Are cybersecurity bootcamps worth it? Yes — for beginners, a cybersecurity bootcamp can be a fast, practical way to enter the field. In just 12–30 weeks, you’ll gain hands-on skills in ethical hacking, network defense, and incident response — without spending years on a degree.
TL;DR: Top coding bootcamps for 2025 include: Are you ready to kickstart your career in the tech industry? Coding bootcamps offer a fast and cost-effective
TL;DR In today’s digital age, part-time coding jobs from home are gaining popularity. They offer flexibility and a chance to earn from anywhere. A recent
Web3 games use blockchain technology to enable decentralized ownership of in-game assets, allowing players to truly own and trade items like NFTs and cryptocurrencies.
Blockchain enables transparency, security, and immutability, giving players control over their assets and enabling trustless transactions within decentralized game economies. Consider scalability, transaction speed, costs, security, interoperability, and ecosystem support to enable a smooth gameplay and long-term success.
LightChain AI is a framework that integrates lightweight blockchain technology with artificial intelligence to enable decentralized, scalable, and efficient AI applications.
Many new web developers find themselves asking, Is CSS hard to learn? While CSS powers the look and feel of every polished website, it can
TL;DR Software engineering can be challenging but is achievable with dedication. You don’t necessarily need a degree…bootcamps and self-learning are valid alternatives. The career path
TL; DR
How it works?
Paste your wallet address.
Complete optional verification.
Request ETH and wait for delivery (seconds to minutes).
Faucets often have daily limits or cooldowns to prevent abuse.
Did you know that metaverse adoption is expected to grow significantly by 2025, though precise user estimates vary, with broader digital experiences potentially reaching tens
TL; DR Medical coding faces significant challenges as healthcare evolves rapidly. This article explores the top issues anticipated for 2025, drawing on insights from industry
TL;DR Ethereum 2.0 is a significant update to the world’s second-largest cryptocurrency network that takes advantage of proof-of-stake consensus mechanism, providing users with faster transaction
TL; DR: Oracle Blockchain An oracle in blockchain is like a helper that lets a blockchain network connect with other data sources or systems. It’s
Coding bootcamps promise quick paths to tech careers. We asked real experts when they are worth it and what to know before you join.
Discover the 4 main types of blockchain technology: public, private, hybrid & consortium. Learn which blockchain type fits your business needs in 2025.
Web3 security relies heavily on digital signatures to verify the authenticity and authorization of transactions. However, a vulnerability known as signature malleability can pose a
Discover Ethereum Testnets in 2025: What Happened to Rinkeby and Goerli….and Why Sepolia Is Now the Standard.
Testing a smart contract without risking real ETH is a game-changer. The Sepolia testnet lets you do just that. This guide, shows you how to deploy a smart contract using MetaMask and a browser-based Solidity IDE, with free test ETH from the Metana Sepolia Faucet.
TL;DR: Scikit-Learn is a Python library focused on simple and efficient tools for data mining and analysis, ideal for classical machine learning tasks. TensorFlow, developed
Question: Is it hard to become a data analyst? Direct Answer: It’s challenging but absolutely achievable – becoming a data analyst requires dedication and continuous
TL;DR ERC-20 and BEP-20 are token standards that define technical guidelines and specifications for tokens. These standards specify all methods of transactions, deposits, and withdrawals.
Yes. Crypto faucets are safe to use with precautions. Discover the importance of crypto faucet safety as millions seek free cryptocurrency. Understand the risks and how to protect your assets in the expanding digital currency market.
TL;DR WebSockets are a protocol that enables real-time, bidirectional communication between clients and servers over a single persistent connection. Unlike HTTP’s request-response model, WebSockets allow
In 2024, smart contract vulnerabilities led to over $3.5 billion in losses within the blockchain industry, underscoring the critical importance of comprehensive security audits to protect decentralized finance ecosystems. This guide covers 15 smart contract vulnerabilities that every developer must understand:
TL;DR What are Web3 memes? Web3 memes are a type of internet meme that is related to the Web3 movement. Web3 is a proposed new iteration
Sepolia is the clear winner for new Ethereum development projects. Its well-optimized architecture, Ethereum Foundation support, and long-term sustainability make it the smart choice for developers building dApps, smart contracts, and DeFi protocols.
DevOps engineers are pivotal in fostering a culture of collaboration and automation within organizations. They play a key role in ensuring that software development and deployment processes are streamlined, efficient, and reliable.
TL;DR Web3 is revolutionizing the internet by enabling decentralized, peer-to-peer interactions without intermediaries, powered by blockchain and cryptography. Open-source projects are at the heart of
Blockchain tech is a hive of activity, buzzing with ideas to make it safer and more private for everyone. Two prominent players in this arena
Ever wonder how your favorite websites work? They’re not just pretty faces – they’re complex creations, and full-stack developers are the masterminds behind them.
The best tech jobs for women in 2025 include data scientist, software developer, UX designer, and AI engineer. These roles offer strong pay, flexibility, and career growth in a thriving industry.
TLDR;
Sepolia ETH is not real money. It’s a test version of Ethereum used for development and testing on the Sepolia testnet. It has no real-world value, can’t be traded or sold, and is available for free through testnet faucets. Its purpose is purely educational and technical, not financial.
Blockchain development is the process of creating and maintaining blockchain-based applications and systems. Blockchain is a distributed ledger technology (DLT) that allows for secure, transparent,
Business intelligence (BI) exercises—like data analysis and dashboard building—are essential for beginners to build real-world skills. They help boost your personal brand and are valuable even in Web3 careers. Tools like Power BI, Tableau, and SQL are great for hands-on learning.
Medical coding involves converting healthcare diagnoses, procedures, and services into standardized alphanumeric codes used for billing, insurance claims, and data analysis.
TL;DR
Blockchain is a decentralized, secure digital ledger used in crypto, DeFi, NFTs, and more. It’s driving high-growth tech careers in 2025, including developers, analysts, and architects. AI and blockchain are merging, enabling smarter contracts, secure data, and transparent automation.
New hybrid roles like AI Blockchain Engineer and Smart Contract Auditor with AI are emerging.
The Metana Sepolia faucet, offered by Metana.io, is a free crypto faucet designed for Web3 learners and developers. It drips 0.06 Sepolia ETH daily to your testnet wallet, such as MetaMask, for use on Ethereum’s Sepolia testnet—a proof-of-stake network that mirrors the Ethereum mainnet.
A DeFi smart contract is like an autonomous financial agent built on the blockchain (most commonly Ethereum). It’s written in code (think Solidity) and designed to automatically execute actions when certain conditions are met. No banks, no middlemen. Just trustless code doing exactly what it’s programmed to do.
TL;DR Yes! Is coding still worth it? Absolutely! Coding continues to be in high demand with strong job opportunities, competitive salaries, and the ability to
Testnet faucets provide small amounts of test tokens, like Sepolia ETH, Solana SOL, or Mumbai MATIC, which mimic mainnet behavior but have no real value. They enable developers to test code, deploy contracts, and simulate transactions on networks like Ethereum Sepolia or Polygon Mumbai.
Decentralized Identity in Web3 is like owning your digital passport instead of relying on centralized authorities. It uses blockchain to give you control over your identity data and allows you to selectively share verifiable credentials. This is crucial for Web3 because it enhances user privacy, interoperability, self-sovereignty, reduces reliance on intermediaries, and provides a secure foundation for decentralized applications.
Master Git early: Use version control from the start to track code changes, collaborate with others, and avoid losing progress.
Write tests: Embrace test-driven development (TDD) to catch bugs early, improve code reliability, and make maintenance easier.
Prioritize readability and documentation: Clean, readable code and proper documentation help make your projects easier to manage and collaborate on.
Focus on fundamentals first: Learn core programming concepts before diving into frameworks to build a solid foundation for your development skills.
Data science bootcamps offer a rapid path to high-demand careers. Key reasons to consider them in 2025 include the following. Programs last 12 to 24 weeks and teach skills like Python, SQL, and machine learning. They provide a faster, cheaper alternative to traditional degrees for entering data roles. Top programs place 70 to 90 percent of dedicated students in jobs within six months. Graduates often secure roles like data analyst or junior data scientist, earning $75,000 to $100,000. Success depends on program quality, student commitment, and career support utilization.
Faster content delivery is very crucial and reliable in modern web development. Whether you’re managing a simple blog or a large-scale e-commerce platform, prioritizing efficient
TL; DR
Coding is a vital skill growing rapidly in demand across industries.
Choose beginner-friendly projects and languages like Python or JavaScript, chosen based on your interests and goals.
A testnet faucet is an online service that provides free testnet tokens for use on blockchain test networks, such as those in the Ethereum ecosystem.
Coding jobs in 2025 are in high demand due to advancements in AI, blockchain, and cloud computing.
Top roles include software developer, AI/ML engineer, blockchain developer, cloud engineer, cybersecurity developer, full-stack developer, and game developer.
A BNB Testnet Faucet is an online tool or service that dispenses free testnet BNB (tBNB) tokens for use on the Binance Smart Chain (BSC) testnet.
Decentraland invites Web3 enthusiasts to take part in Career Quest 2025, a premier event that connects talented individuals with educational opportunities and career pathways in Web3 technologies.
An Integrated Development Environment (IDE) is a powerful software suite that streamlines software development by combining essential tools like a code editor, debugger, compiler, and build automation into a single, user-friendly interface. It boosts productivity by offering features such as syntax highlighting, auto-completion, version control integration, and real-time error detection, enabling developers to write, test, and deploy code efficiently within one cohesive environment.
The Game Time Hackathon — run by Metana and The Binary Holdings (TBH) — challenged devs to build hyper-casual Web3 games. 25+ entries came in. 10 winners were selected.
TL;DR: Smart contracts are self-executing agreements written in code that automatically execute when certain conditions are met. They function on blockchain technology, removing the need
TL;DR The Evolution of Web3 Developer Tools As we move through 2025, the Web3 space is maturing, offering developers a powerful ecosystem of frameworks, languages,
TL;DR Building a full-stack application comes with its own set of challenges, especially when it comes to security. Since these applications span both the client-side
TL; DR
Sepolia faucets provide free test Sepolia ETH for the Ethereum Sepolia testnet.
Claiming Sepolia ETH lets you interact with the blockchain test environment without spending real money.
This guide shows you how to get Sepolia ETH, why Sepolia is the preferred testnet, and how it helps you start learning Web3.
Using Sepolia faucets is secure and beginner-friendly, with no risk involved.
Crypto faucets are beginner-friendly platforms that give out small amounts of cryptocurrency for simple tasks.
In today’s tech-driven world, websites and web applications have become an integral part of our daily lives. Whether it’s social media, e-commerce, or even simple
The current state of Web3 technology is characterized by its shift towards decentralization. Key technological foundations include blockchain, distributed ledger technology, and decentralized networks.
TL;DR Your personal brand is your online identity, helping you stand out in the competitive remote job market. Key Steps: Final Thought: A strong online
Full stack development is the whole process involved in building and running both the front-end and back-end of a website or web application.
The Ethernaut Level 29 Switch challenge revolves around understanding how dynamic CALLDATA is constructed and interpreted by Solidity contracts. The objective is to craft a CALLDATA payload that allows a single low-level call to execute both turnSwitchOff() and turnSwitchOn() — cleverly circumventing the onlyOff modifier check within flipSwitch().
Solidity developers earn between $70,000 and $200,000 annually, depending on their experience.
TL;DR What is metaverse explained in simple terms: The Metaverse is a shared network of 3D virtual worlds where people can work, play, socialize, and
TL;DR When coding feels hard (and it will), try these simple coding motivation tips: Remember: All good coders started where you are now. Keep going.
TL;DR Introduction In the world of backend development, Node.js basics for beginners are essential knowledge. Node.js has gained a massive following due to its lightweight,
TL;DR If you’re a web developer, choosing the best IDE for web development 2025 can seriously level up your productivity and enjoyment. Your IDE is
The average Web3 developer salary in 2025 ranges between $80,000 and $300,000+ USD per year, depending on factors like role, experience level, …
TL;DR: Blockchain technology has garnered significant attention in recent years, mainly due to its association with cryptocurrencies like Bitcoin. However, with all the buzz surrounding
TL;DR: Imagine buying a house in minutes, without piles of paperwork or waiting weeks for approval. This isn’t science fiction—it’s how blockchain technology is transforming
TL;DR If you’re a full stack developer—or someone aiming to become one—you’ve probably realized that writing code is only part of the journey. Building great
TL;DR: Want to build websites, apps, or automate tasks without coding? These no-code tools help you launch ideas quickly and easily: You’ve got an awesome
TL;DR What is the Metaverse? At its core, the Metaverse is a virtual, persistent world that exists parallel to our physical one. It’s made up
TL;DR: Understanding Consensus Mechanisms Blockchain technology, the foundation of cryptocurrencies like Bitcoin and Ethereum, relies heavily on consensus mechanisms to validate transactions and secure the
TL;DR If you’re considering a career switch to tech, you’re not alone. Many students who join Metana come from different career backgrounds. But it’s more
TL;DR: With so many layoffs and changes in the job market, developers face tough competition for fewer roles. A strong tech portfolio can make you
TL;DR: What Are Stablecoins and Why Is Stablecoin Adoption Increasing? Stablecoins are a type of cryptocurrency designed to maintain a stable value by pegging them
TL;DR Yes! If you want to learn React 2025, it remains a top choice for web development with strong job demand. Why? React is fast,
TL;DR As a full-stack developer, ensuring the health and performance of your applications is paramount. Monitoring and logging are two fundamental practices that help you
TLDR: CLI commands are text-based instructions that allow users to interact with computers through a command-line interface instead of using a graphical interface. Learning CLI
TL;DR The average Web3 developer salary in 2025 ranges between $80,000 and $250,000+ USD per year, depending on factors like role, experience level, and the
TL;DR Have you ever clicked on a website and waited… and waited… only to give up and leave? Slow-loading sites frustrate visitors, hurt your search
TL;DR Remember when everyone was talking about Bored Apes and spending millions on digital rocks? The NFT craze of 2021 seemed unstoppable—until it wasn’t. As
TL;DR Worth learning if you’re: A systems programmer, backend developer, or working on performance-critical code. Key benefits: Not ideal for: Complete beginners or quick projects
TL;DR What is a DAO? A Decentralized Autonomous Organization (DAO) is an organization that operates through smart contracts on a blockchain. Unlike traditional organizations, DAOs
TL;DR Introduction: Why Scaling Microservices Matters Microservices architecture has become a go-to strategy for developing modern, scalable applications. Instead of building one huge monolithic system,
TL;DR In today’s fast-paced digital world, the need for custom applications is rising. Traditional software development can be time-consuming and requires specialized knowledge. Enter low-code
TL;DR Ethical hacking is about testing systems to find vulnerabilities before malicious hackers can exploit them. It involves identifying weaknesses, gaining access, and fixing security
TLDR: Mobile apps are becoming smarter, faster, and more user-friendly. AI will help apps predict user needs, while 5G will ensure faster, smoother experiences. Apps
TL;DR Rust is a systems programming language that guarantees memory safety without requiring a garbage collector. At the heart of this guarantee are two key
TL;DR Blockchain technology is transforming the fintech industry by providing secure, transparent, and decentralized solutions. It enables faster, low-cost payments, decentralized financial services, smart contracts,
TL;DR: What Is a User Persona? A user persona is a fictional profile based on real information about your customers. Imagine you’re making a cooking
TL;DR Introduction In recent years, the internet has been abuzz with discussions about Web3, a decentralized version of the web built on blockchain and cryptocurrency
TL;DR When working with iterators in JavaScript, it’s not uncommon to encounter situations where you need to extract unique values. Whether you’re handling user input,
TL;DR What is Base Crypto? In the rapidly evolving world of blockchain, scalability and transaction costs remain two of the biggest hurdles facing popular networks
TL;DR JavaScript generators are an exciting feature that can help you write more efficient, readable, and manageable code. In this article, we’ll explore the ins
TL;DR Get an OpenSea API key, read the docs, and start with simple NFT data fetches (like assets or collections). It’s a read-only API—no minting.
JavaScript proxy is a game-changer in web development, offering developers unprecedented control over object behaviour. Whether you’re intercepting operations, implementing security layers, or enhancing performance,
TL;DR JavaScript is a versatile programming language with numerous powerful tools and features that help developers manage and manipulate objects. One such tool is JavaScript
TL;DR: Ethereum’s Pectra upgrade is set to be one of the most transformative upgrades in the network’s history. With a focus on improving efficiency, scalability,
TL;DR Dreaming of working in your pyjamas, coffee in hand, tapping away from the comfort of your living room? You’re not alone. No experience remote
TL;DR Decentralized Finance (DeFi) relies on smart contracts to enable secure, trustless financial transactions. However, vulnerabilities in smart contracts can lead to devastating hacks, financial
TL;DR Decentralized Finance (DeFi) is revolutionizing the financial industry by offering an alternative to traditional banking. At the heart of this transformation is MakerDAO and
TL;DR The Binary Holdings invites developers worldwide to the Game Time Hackathon, aiming to integrate Web3 decentralized applications (dApps) into popular telecom apps across Indonesia
At its core, GameFi is the convergence of gaming and decentralized finance (DeFi), offering players the opportunity to earn cryptocurrency or NFTs through in-game achievements. Unlike traditional games, where players spend money for entertainment, GameFi platforms reward users for their time and efforts, creating an entire ecosystem where gaming and financial incentives go hand in hand.
TL;DR Decentralised finance (DeFi) has quickly become a revolutionary force in the financial world, offering opportunities to earn, lend, and borrow without intermediaries. However, while
TL;DR In the fast-evolving world of decentralized finance (DeFi), Collateralized Debt Positions (CDPs) have become a crucial tool for borrowing and creating stablecoins like DAI.
TL;DR In this article, we explore the impact of blockchain in different industries and its long-term benefits. Blockchain technology is rapidly transforming various industries by
TL;DR These two Ethereum-based protocols allow users to borrow and lend digital assets without relying on traditional financial institutions. However, they cater to different user
TL;DR How to Avoid Slippage in Crypto Trading: Practical Tips Slippage is an inevitable part of crypto trading due to the volatile nature of the
TL;DR In the realm of web development, JavaScript remains one of the most widely used programming languages. It powers interactive web pages, server-side applications, and
Choosing to become a blockchain developer means stepping into one of the most innovative and fast-growing fields in technology. Blockchain is revolutionizing industries like finance,
TL;DR In today’s competitive job market, personal branding for job seekers is more important than ever. Employers don’t just look at résumés—they want to see
TL;DR To understand What are Modular blockchains, It is a must to understand that Blockchain technology has continually evolved to meet the growing demands of
TL;DR Understanding the Web3 Peer-to-Peer Marketplace Advantage Data Ownership & Privacy This empower users with full control over their data, addressing privacy concerns prevalent in
TL;DR In the rapidly evolving world of DeFi with Uniswap hooks, traders seek innovative ways to optimize their strategies while minimizing risks. One such approach
TL;DR With the rise of non-traditional education pathways, coding bootcamps have become a popular way to gain technical skills quickly and efficiently. A well-presented bootcamp
TL;DR Decentralized finance (DeFi) has transformed trading by giving users full control over their assets. A take-profit limit order allows traders to automate their exit
TL;DR In the rapidly evolving world of decentralized finance (DeFi), liquidity mining has emerged as a crucial component in ensuring the smooth functioning of decentralized
TL;DR Development Process and Skills Required Before dive into Vibe Coding vs Traditional Coding; Let’s read about, Vibe Coding is an AI-assisted approach where developers
TL;DR JavaScript is one of the most widely used programming languages in the world, acting as the backbone of modern web functionality. For anyone starting
TL;DR The world of decentralized finance (DeFi) is rapidly transforming the financial landscape, offering users a revolutionary alternative to traditional banking. DeFi Lending Platforms have
TL;DR The world of software development is changing fast. With AI tools like Cursor, Replit Agent, Bolt, and Lovable taking over the heavy lifting of
TL;DR JavaScript hoisting is one of those concepts that confuses developers—especially beginners. Many assume that JavaScript moves declarations to the top, but the reality is
TL;DR In today’s digital landscape, protecting sensitive information is more critical than ever. Cryptography plays a fundamental role in securing online communications, ensuring data integrity,
TL;DR: In the ever-evolving world of cryptocurrency, decentralised exchanges (DEXs) have become key players, providing a space for folks to trade without the need for
TL;DR Impermanent loss (IL) occurs when the price of assets in a liquidity pool changes compared to when they were deposited, leading to a lower
TL;DR: What is a Modular Blockchain? Blockchains are categorized as monolithic or modular. A monolithic blockchain integrates consensus, data storage, and transaction execution into a
TL;DR JavaScript is one of the most popular programming languages in the world today. It plays an important role in modern software development. One of
When writing JavaScript, variable accessibility is determined by where a function is defined. This behavior is called lexical scoping. JavaScript follows a lexical scope model,
Memory management is one of the fundamental aspects of software development. In JavaScript, despite its reputation as a “garbage-collected” language, developers still need to understand
TL;DR: Understanding Web3 Communities A Web3 community is a decentralized network of individuals collaborating on blockchain-based projects, bound by a shared vision. Unlike traditional online
TL;DR DeFi 2.0 is revolutionizing decentralized finance by improving upon the limitations of DeFi 1.0. The transition introduces more efficient and sustainable financial mechanisms, reducing
TL;DR In a digital-first world, who you are online defines how people perceive you. Whether you’re a freelancer, entrepreneur, or professional, building a personal brand
In modern JavaScript development, modules have become an essential tool for organizing code. This article explores what JavaScript modules are, how they enhance code organization,
TL;DR JavaScript is evolving to support Web3 applications through: Overall, understanding JavaScript is essential as it continues to be a fundamental tool in building innovative
Cryptography is the backbone of cybersecurity, protecting data from unauthorized access and ensuring secure communications. Whether you’re a beginner or an advanced learner, choosing the
TL;DR The gaming industry is undergoing a revolutionary shift with the rise of Web3 gaming platforms. Unlike traditional gaming ecosystems, these platforms leverage blockchain technology
TL;DR: Web3 gaming is reshaping the gaming landscape, offering decentralised experiences where players truly own their digital assets. Unlike traditional games, where in-game items are
The crypto market has been on a wild ride in early 2025, and if you’ve been watching prices tumble, you’re probably wondering why is crypto
TL;DR: Web3 is the next evolution of the internet, transitioning from centralized control to decentralized ownership powered by blockchain. Comparison with previous internet versions: Impact
If you’re preparing for full stack developer interview, you probably have a lot of questions. What should you expect? What topics should you brush up
TL;DR An RPC node is a computer that helps blockchain applications communicate with the network. It allows dApps to send transactions, retrieve data, and interact
TL;DR Mappings in Solidity are key-value stores that offer fast lookups and efficient storage but lack iteration capabilities. They are ideal for storing balances, permissions,
TL;DR Liquidity is essential for decentralized finance (DeFi) to function smoothly. DeFi liquidity pools enable decentralized trading by allowing users to contribute crypto assets in
The gaming industry is rapidly evolving with Web3 technology, bringing decentralization, player ownership, and blockchain-based economies to the forefront. To build innovative Web3 games, developers
Finding the right job path can feel overwhelming, but the good news is that you don’t have to figure it out alone. A career quiz
Ethereum’s popularity has surged over the years, but its scalability issues have led to high gas fees and slower transaction speeds. To address this, Layer
With the rise of blockchain technology, digital asset management has become more secure and efficient. Smart contract wallets are transforming how users store, transfer, and
A career quiz can be a fun and insightful tool to help individuals discover potential career paths based on their interests, skills, and personality traits.
TL;DR Optimistic Rollups scale Ethereum by processing transactions off-chain, reducing gas fees and congestion while maintaining security. They assume transactions are valid unless challenged, with
TL;DR A Solidity IDE is an essential tool for writing, testing, and deploying smart contracts efficiently. Since smart contracts are immutable after deployment, using a
TL;DR Wondering about what is Scrum and its role in agile project management? This popular framework is key to creating innovative products and services. It
Why Are Smart Contracts Changing Gaming? Imagine playing a game where you truly own your in-game items, and rewards are handed out automatically and fairly—without
The rise of coding bootcamps has made tech careers more accessible than ever. Instead of spending five years in a university, many aspiring developers are
Can You Get a Coding Job with Just a Bootcamp? With the rising cost of traditional education and an increasing demand for tech talent, coding
Should You Enroll in a Full Stack Developer Bootcamp? With the rise of tech careers, many aspiring developers wonder: Are full stack developer bootcamps worth
When building modern websites, knowing how to create responsive layouts is crucial. Two of the most popular tools for this task are CSS Grid and
TL;DR: When you explore the world of cryptocurrency, you might ask what makes USDT and USDC different. The debate between USDT and USDC has caught
NFTs (Non-Fungible Tokens) have taken the digital world by storm, changing how we perceive ownership of art, music, gaming assets, and even real estate. But
What Are Web Development Bootcamps? A coding bootcamp is an immersive, short-term program designed to teach you the skills needed to start a career in
JavaScript is one of the most widely used programming languages today, powering everything from interactive web pages to server-side applications. A significant aspect of JavaScript’s
Choosing between agile vs waterfall methodologies is a big decision for your project. It can greatly affect your project’s success. You might be thinking, “Which
As you move through your career, having a clear plan is key. Career planning helps you identify areas for growth and development. This way, you
ETHGlobal, known for its role in pushing Web3 innovation forward, is hosting its latest event: AGENTS Hackathon. This event dives into the potential of Agentic
As blockchain technology continues to mature, the need for scalability, efficiency, and affordability has grown exponentially. Enter Layer 2 smart contracts, a powerful solution designed
Cryptocurrencies are digital currencies secured by cryptography and exchanged on decentralized networks without the need for banks or central authorities. Transactions occur between digital wallets
Gaming has come a long way—from simple arcade games to massive online multiplayer experiences. But now, we’re entering an entirely new era: Web3 Gaming. Imagine
What Are Smart Contracts? Imagine a digital agreement that runs itself once everyone agrees on the terms — that’s a smart contract. These are self-executing
When working with callback in JavaScript, is one of the most common challenges developers face is understanding the behavior of this, especially inside callbacks. Misusing
Remote leadership also known as virtual leadership, once a niche concept, is now a cornerstone of modern business. As teams span continents and time zones,
Smart contracts have transformed the execution of digital transactions and agreements by offering a secure, automated, and tamper-proof solution for managing complex workflows. However, their
Critical thinking at work is essential in today’s workplace, enabling you to analyze problems, weigh options, and make smart decisions. It’s not confined to specific
A callback is a function passed as an argument to another function, allowing it to be executed later, often after the operation is complete. It
Are you feeling stuck in your career, or just starting out and unsure of your next steps? Career coaching could be the game-changer you need.
Figuring out your next career move can feel overwhelming, but it doesn’t have to be. With the right tools, you can explore your options, identify
What Are Career Growth Skills? Career growth is all about your journey toward achieving your big-picture career goals. It’s how you go from your first
Git and GitHub have become indispensable tools in modern software development. They empower developers to collaborate seamlessly, track changes over time, and maintain an organized
Collaboration is key in modern software development, and GitHub has become an essential tool for developer teams. However, when working on collaborative projects, encountering merge
In today’s fast-paced development landscape, effective version controlling is no longer a luxury, it’s a necessity. Version control systems (VCS) like Git have revolutionized how
TL;DR: CEX vs DEX: Quick Overview CEX vs DEX: Key Points Which to Use? Why Choose One? Mix Both. Use CEXs for convenience and big
Effective workplace communication is the cornerstone of productive teams, healthy relationships, and successful businesses. This guide explores what effective communication means, how to practice active
Unlock your potential and achieve career success through self improvement! Personal development is all about reflecting on your skills, identifying areas for growth, and building
Are you ready to unlock your full potential and take your career to new heights? Whether you’re just starting out or aiming for the next
Git is one of the most popular version control systems, widely used by developers to manage source code efficiently. However, setting up Git on your
In today’s fast-paced job market, career setbacks like job loss or unexpected changes are common. While these challenges can be tough, they also present opportunities
As remote work becomes the norm, remote collaboration tools are no longer just conveniences—they’re the lifeblood of modern teamwork. These digital solutions enable teams to
The Python return statement is one of the most fundamental features of the language. Whether you’re writing a simple function to add two numbers or
If you’re considering remote work, you’ve likely heard about the importance of a remote work portfolio. But what exactly is it, and how can it
As cryptocurrency adoption continues to grow, so does the demand for tools that ensure privacy and anonymity in digital transactions. Bitcoin mixers, also known as
TL;DR: With remote work on the rise, a professional home office is essential for boosting productivity, cutting costs, and attracting top talent. Here’s how to
Working from anywhere in the world sounds like a dream come true, but staying productive as a digital wanderer requires more than just a laptop
TL;DR Commit messages are critical for maintaining a clear and collaborative development process. They should be clear, concise, and consistent, adhering to a standard format
The wait is over—ETHGlobal Pragma is back for 2025! This transformative one-day, single-track, in-person summit is where Ethereum’s brightest minds, developers, and industry leaders come
Deciding between an externship and an internship can significantly shape your career path. Both are valuable opportunities for professional growth but differ in structure, duration,
In the fast evolving world of decentralized finance and blockchain technology, the need for secure and reliable data feeds is more important than ever. Chainlink,
TL;DR When working with Python, one of the most important aspects of writing robust and error-resilient code is understanding the use of the try-except block. It is
The Ethereum blockchain has revolutionized decentralized finance and blockchain applications, but its popularity has led to issues like high gas fees and slow transaction speeds.
LinkedIn isn’t just another social media site; it’s a professional powerhouse where you can showcase your expertise, foster meaningful professional relationships, and build your authority
Remote work has revolutionized the way we approach our careers, offering unparalleled flexibility and convenience. Yet, this shift has also introduced a new challenge: remote
We are thrilled to announce that Metana has been named one of the Best Coding Bootcamps with Job Guarantees for 2024 by Forbes! This is
TL;DR Learning how to create multi-step forms is a valuable skill for web developers, as it can significantly improve user experience by making lengthy forms
At Metana, we’re dedicated to making education accessible to everyone, no matter your financial situation. We understand that enrolling in a bootcamp is a big
In today’s interconnected world, privacy and security are paramount. Traditional Virtual Private Networks (VPNs) have long served as a solution for individuals and businesses seeking
In the evolving landscape of blockchain technology, Relayers play a pivotal role in ensuring seamless communication and interaction between different blockchains. These components are vital
NFT (Non-Fungible Token) auctions are revolutionizing how we buy, sell, and own digital assets. From artwork and music to virtual real estate and collectibles, NFTs
If you’re preparing for a UX Designer interview or looking to hire someone for the role, it’s important to understand the fundamentals of UX design,
Embracing remote work and global collaboration is essential for modern businesses aiming for growth. However, working with teams across different time zones can present unique
Blockchain has changed many industries with decentralized, transparent and secure data storage and transaction systems. It’s spread from finance and supply chains to healthcare and
In the ever-evolving world of blockchain technology, smart contract upgrades have become an essential feature to ensure adaptability, fix bugs, and enhance functionality. However, upgrading
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Remote working has become one of the biggest trends in the modern workplace, changing how, where and when we work. Enabled by technology and accelerated
The financial markets are evolving rapidly, and with this evolution comes the need for smarter, faster, and more efficient trading strategies. Traditional trading methods, often
TL;DR The Solana blockchain is one of the most dynamic and innovative ecosystems in the cryptocurrency world, offering unparalleled speed and scalability. However, navigating this
MetaMask has become one of the most popular cryptocurrency wallets for managing digital assets across Ethereum and other EVM-compatible networks. However, Solana, one of the
Security, trust, and decentralization are at the heart of the blockchain technology that powers many of the digital currencies. At the core of this system
AI is revolutionizing industries and changing the way we live, work, and interact. However, most AI systems are centralized, controlled by a few organizations, which
In today’s fast-changing job market, individuals face increasing challenges when it comes to finding meaningful, long-term employment. Traditional education often doesn’t equip job seekers with
TL;DR: In the world of decentralized finance (DeFi), Uniswap has emerged as one of the most prominent decentralized exchanges (DEXs), enabling users to swap tokens,
TL;DR: In the rapidly evolving world of blockchain technology, Ethereum has emerged as one of the most widely adopted platforms, enabling decentralized applications (dApps), smart
Navigating the tech industry can be daunting, especially for newcomers eager to establish meaningful professional relationships. Insights from a Global Data Science Leader and a
Blockchain technology is transforming industries across various sectors, including finance, supply chain management, healthcare, and a lot more. At the heart of blockchain development are
Keeping your coding skills sharp and updated is important in today’s world. The best way to achieve this is through consistent practice. Building innovative and
As the demand for skilled coders, software developers, and tech professionals continues to rise, finding the right school to learn coding has never been more
Ethereum has become the backbone of the Decentralized Finance (DeFi) revolution, and with the introduction of Uniswap V4, it’s taking decentralized exchanges (DEXs) to the
User Experience (UX) research is a pivotal component in the design and development of products that resonate with users. By delving into user behaviors, needs,
In today’s world, full stack developers are in high demand. However, the competitive nature of the tech industry makes securing a successful position increasingly challenging.
The role of an SOC (Security Operations Center) analyst has gained prominence in the ever-evolving field of cybersecurity. As organizations worldwide face escalating cyber threats,
TL;DR Career Opportunities: By acquiring the right skills and certifications, developers can position themselves for lucrative career opportunities in these fields. The tech industry is
Businesses today increasingly rely on sophisticated tools and systems to stay top in the market. However, these advanced solutions often require specialized knowledge to effectively
Software engineering is a rapidly growing field offering lucrative career opportunities, flexibility, and the chance to shape the technology that drives modern life. Aspiring software
TL;DR: In this era of continuous technological advancement, choosing the right career path can feel overwhelming. If you are having an hard time figuring out
In today’s digital age, the demand for software engineers has skyrocketed. With the rapid growth of technology, software engineers are at the forefront of building
In the fast evolving world of Web3, improving user experience has now become a big priority. One new way to make things easier is using
The world of decentralized finance (DeFi) is evolving rapidly, with numerous protocols and platforms pushing the boundaries of how finance works in the digital age.
TL;DR Chicago is a rising tech hub, driven by a skilled workforce, affordable living, and a thriving startup ecosystem. Home to top universities and incubators
TL;DR: Atlanta, the “Silicon Valley of the South,” is a fast-growing tech hub with top talent, a thriving startup scene, and a business-friendly environment. Why
The concept of Real World Assets (RWAs) has gained significant attention as blockchain technology and decentralized finance continue to grow. Real World Assets serve as
In today’s tech landscape, U.S. cities like Austin, Texas, have grown to become major hubs of innovation. Known for its vibrant culture, live music scene,
The life of a software engineer is a mix of creativity, problem-solving, and continuous learning, all set in an environment crafted to foster productivity. Let’s
In the ever-evolving landscape of technology, information technology (IT) companies have become a cornerstone of the global economy, driving innovation, efficiency, and connectivity. In the
In today’s technology-driven world, software development plays a crucial role in almost every industry. From mobile applications to complex enterprise software, the success of a
In today’s world, where a lot of programming languages are in use across various applications, you might find yourself asking, What is the best programming
In today’s world, career transitions are becoming increasingly common, and if you’re a nurse looking to move into the tech field, you may be asking
The information technology sector is at the forefront of innovation, transforming industries, economies, and our daily lives. As technology evolves rapidly, different states in the
In the fast-paced world of software development, delivering high-quality software products is important for success. This is where the role of a QA Engineer (Quality
When thinking about a career in software engineering, many people wonder, “Is software engineering a lot of math?” This question often creates concern for those
TL;DR The world of Information Technology (IT) offers many lucrative career opportunities. However, the question remains: Which IT job is the highest paid? As technology
In today’s world, software engineering has become one of the most popular career choices. As businesses in all industries go digital, the need for skilled
The software industry is evolving at a rapid pace, with emerging technologies constantly shaping the landscape. Software engineering is a vast and multidisciplinary field encompassing
The Ethereum Virtual Machine (EVM) is a critical component of the Ethereum blockchain, powering smart contracts and decentralized applications (dApps). Understanding how to interact with
A deeper understanding on the difference between storage, memory, and calldata is important for optimizing smart contracts, ensuring better performance, reducing gas costs, and securing
In the world of software development and API integration, webhooks play a pivotal role. As more businesses rely on automated workflows and cloud-based applications, webhooks
In blockchain development, particularly on Ethereum, testing smart contracts is crucial to ensuring that they function as expected and are secure from exploits. Once a
Web3 is the new era of the internet that has gained significant attention lately. The demand for Web3 developers has highly increased, with businesses and
Transitioning into a new career can feel like an uphill battle, especially when your previous work experience seems unrelated to your desired field. One of
Web3 is not simply another version of the web, it’s the next phase of the internet, that transforms how we interact with data, digital assets,
In the world of programming, understanding how a program flows is critical to writing efficient and functional code. Two common concepts that help control the
The world of collectibles has evolved dramatically in recent years, and at the forefront of this evolution are NFT trading cards. Once limited to physical
With the rapid evolution of decentralized finance, non-fungible tokens, and smart contracts, the need for transparency in blockchain networks has become more important than ever.
Avalanches are innovative, multi-layer blockchain platforms that have gained significant popularity in the cryptocurrency and decentralized application world. It is designed to be highly scalable,
In today’s competitive landscape, building a professional network in the tech industry is not just a good idea, it’s essential. Whether you are a software
TL;DR Yes, you can implement a basic blockchain using JavaScript! This article walks you through creating a simple blockchain, covering key concepts like blocks, hashes,
Solidity is the primary programming language for Ethereum smart contracts. While it offers a high-level, developer-friendly syntax, it also provides access to low-level assembly, which
JavaScript is one of the most popular programming languages used today, and understanding how to work with data types is fundamental to mastering it. One
JavaScript array comprehension provides a powerful way to construct arrays from existing data without the need to explicitly write loops, providing a more cleaner and
The Evolution of the Internet: Enter Web3 The internet has evolved dramatically over time. Web1 was the early, static “read-only” internet, where users could only
Blockchain technology has evolved rapidly, introducing new platforms and features aimed at expanding decentralization and enhancing scalability, security, and performance. The Ethereum Virtual Machine (EVM)
In today’s digital landscape, users interact with numerous websites daily. It is important for businesses to have responsive websites that deliver an optimal user experience
Long Short-Term Memory (LSTM) networks are a type of Recurrent Neural Network (RNN) architecture that has revolutionized the field of sequence modeling. Traditional RNNs struggle
ETHDenver is an important Ethereum and blockchain community event that takes place every year in Denver, Colorado. This is known as the world’s largest and
TL;DR: Smart contracts have become one of the most revolutionary aspects of blockchain technology, especially in decentralized finance (DeFi), digital assets, and automation. These self-executing
In recent years, Non-Fungible Tokens (NFTs) have captured widespread attention across multiple industries, from art and entertainment to real estate and gaming. These unique digital
As Ethereum’s popularity continue to rise, this leading smart contract platform has encountered challenges related to scalability and high transaction costs. With a growing number
Natural Language Processing is a subset of artificial intelligence that deals with the interaction between computers and humans using natural language. What is NLP? The
TL;DR Bytes32 is a fixed-size (32-byte) data type in Solidity, optimized for the EVM. Used for hashes, Ethereum addresses, and fixed-size strings to save gas.
The Internet Protocol Web3 refers to the next generation of the internet, often known as the “decentralised web.” Unlike the traditional web (Web2), which relies
The tech industry is one of the fastest-growing sectors in the global economy, offering a wide range of opportunities for individuals at all skill levels.
JavaScript and Solidity are both high-level programming languages widely used in their respective domains. While JavaScript dominates the web development world, Solidity is the most
Stepping into the crypto industry is like entering an entirely new world—one that’s still being shaped, with no clear roadmap, but filled with promise. It’s
Blockchain technology is continuously growing to become one of the most transformative forces in the digital world. In the Ethereum blockchain, transactions and computations involve
A resume is a key asset in your job search, serving as an important tool for getting shortlisted for interviews. The strength of your resume
The Solidity compiler is the essential tool that converts high-level Solidity code into a format that the Ethereum Virtual Machine (EVM) can understand. Whether you’re
As blockchain technology continues to advance, Solidity has become the backbone of smart contract development on the Ethereum network. It has gained popularity as a
In today’s world where data security and privacy are very important concepts, cryptography plays an important role in safeguarding information. At the heart of cryptographic
Solidity is a popular, high-level programming language that is used to develop smart contracts on the ethereum blockchain. These self-executing contracts hold the potential to
In today’s landscape of web development, the role of a full stack developer has emerged as one of the most dynamic and essential positions in
Changing your current career is more of an exciting but important decision you make. Your decision is going to migrate your life completely to another
Solidity is a high-level, object-oriented programming language designed for implementing smart contracts, which have become one of the most transformative innovations of our time. These
If you’re looking to dive into blockchain development, one of the first steps is to learn Solidity. Solidity is the most widely used programming language
In the world of blockchain and cryptocurrency, the term Wei holds a significant importance, particularly within the Ethereum ecosystem. While many are familiar with Ether
Understanding Solidity is crucial if you’re eager to dive into blockchain development. However, mastering the language is just the beginning. You must identify the best
In today’s modern web development world, providing a better user experience is crucial in order to keep your users navigating your site. With users interacting
As blockchain continues to grow, the development of smart contracts has become an important aspect of creating decentralized applications. With smart contracts becoming more popular
Crafting a resume is a pivotal step in any job search. It’s not just a list of past jobs and educational background; it’s a marketing
In the ever-evolving world of blockchain technology, Solidity has established itself as the go-to programming language for creating smart contracts on the Ethereum platform. As
In this article, we will walkthrough Ethernaut Level 21: Shop. This challenge is designed to test your understanding of how view functions interact with state
In the ever-evolving world of blockchain development, Solidity stands out as the most popular programming language for Ethereum. However, like any other programming language, Solidity
Ethereum has revolutionized the blockchain industry by creating dApps, DeFi, and NFTs. Despite these advancements, scalability issues have led to congestion, high gas fees, and
TL;DR: As blockchain technology continues to grow, an increasing number of businesses and individuals are exploring ways to contribute to decentralized networks. One of the
TL;DR Blockchain technology has grown to become one of the leading and the most revolutionary innovations today, with the potential to disrupt industries and redefine
Smart contracts have revolutionized trust, transparency, and automation in decentralized systems. To maintain this trust as blockchain evolves, it’s crucial to test smart contracts before
TL;DR: Ethereum, one of the most popular blockchain platforms, has faced a significant scalability challenge. The network’s current throughput is limited to 15 transactions per
As the backbone of Ethereum smart contracts, Solidity has gained significant traction as the languages for building decentralized applications (dApps). As the demand for the
In today’s competitive job market, standing out as a candidate is more critical than ever. The influx of applicants for a single position often results
Modern JavaScript offers a wide range of functionalities that enhance the performance and efficiency of code. Among these features, the concept of a closure in
TL;DR Full stack development involves working on both frontend and backend to build complete web applications. Mastering it allows for efficient problem-solving and collaboration. Here
So, you wanna be a Web3 engineer, huh? That’s a bold move, kiddo. You’re basically signing up to be a digital alchemist, crafting the foundation
In today’s digital world, providing secure communication online is very important. The risk of exposing sensitive information is a significant concern for both individuals and
Ethernaut Level 20: Denial focuses on a vulnerability related to denial-of-service (DoS) attacks. In this article, we’ll break down the Denial contract, identify its vulnerabilities,
In today’s modern web development, performance and speed are important factors when it comes to enhancing user experience and optimizing your web application. The user
In modern web development, providing a seamless and interactive user experience is crucial. A common challenge for a developer is handling user interactions without disrupting
Finding the right job is not just about earning a paycheck; it’s about securing a role that aligns with your skills, interests, and long-term goals.
JavaScript frameworks and libraries have revolutionized web development by providing structured, efficient ways to build complex, interactive applications. Among the numerous options available, three stand
In this walkthrough, we will guide you through the Ethernaut Level 19: Alien Codex challenge. This challenge is designed to test your skills in array
Imagine creating a sophisticated website that showcases your favorite musicians, complete with their names, genres, and intriguing facts. To effectively manage and display this information,
In the rapidly evolving digital economy, Web3 wallets have become essential tools for managing blockchain assets. According to a recent study, over 70 million unique
As you may already know, The Ethernaut, from OpenZeppelin, is a series of challenges designed to teach and test your understanding of smart contract security.
Web3 development thrives on smart contracts – self-executing programs on the blockchain. These contracts are written in high-level languages like Solidity and then compiled into
Web3 promises a democratized financial landscape, but a shadow lurks within its decentralized exchanges (DEXes) – Frontrunning. This exploitative practice leverages knowledge of upcoming transactions
Immutability – the cornerstone of blockchain technology – guarantees that once data is written, it cannot be altered. This concept empowers transparency and trust, making
Decentralization is the cornerstone of Web3, aiming to empower users and reduce reliance on centralized control. However, a common pitfall in Web3 development contradicts this
In the Ethernaut level 17 challenge, participants are tasked with finding and recovering Ether from a lost contract. The goal is to understand how contract
Exception handling is a crucial aspect of any programming language, and Web3 development with Solidity is no exception. The try-catch block offers a mechanism to
Web3 thrives on innovation, but unlike traditional software, upgrades to deployed smart contracts can be a tricky affair. The very nature of blockchain immutability presents
Web3 thrives on the power of smart contracts – self-executing programs that automate tasks on the blockchain. However, a seemingly minor oversight – unchecked return
Decentralized Finance (DeFi) has revolutionized financial services, offering lending and staking opportunities without the need for intermediaries. However, these protocols are not without their weaknesses.
This article will break down the Ethernaut Level 16: Preservation contract, point out its flaws, and show how the Hack contract takes advantage of these
The world of Web3 is brimming with promises of high returns and revolutionary projects, driving a wave of excitement among investors and developers alike. Yet,
Web3 thrives on user empowerment and the ease of sending and receiving cryptocurrency. However, a growing threat lurks in the shadows: Address Poisoning. This malicious
The lifeblood of Web3 applications often lies in tokens, and ERC token standards provide a common language for creating and interacting with these digital assets
Web3 thrives on the immutability of the blockchain – a guarantee that once data is written, it cannot be altered or erased. This permanence is
Solidity, the preeminent language for writing smart contracts on the Ethereum blockchain, is a powerful tool. But like any powerful tool, it has its quirks
Web3 is ushering in a new era of financial applications, blending traditional finance (TradFi) with decentralized finance (DeFi). Many projects straddle this line, requiring a
Web3 applications represent the cutting edge of decentralization, but they do not operate in isolation. These applications require real-world data to function effectively, and this
Flash loans, a cornerstone of DeFi (Decentralized Finance), offer exciting liquidity possibilities. But in the wrong hands, they can become a developer’s nightmare – fueling
In the realm of Web3, the concept of decentralization is not just a buzzword—it’s a fundamental principle. Decentralized Autonomous Organizations (DAOs) epitomize this ethos, where
In the dynamic and evolving landscape of Web3, randomness plays a crucial role in ensuring the fairness and unpredictability of various applications. From provably fair
In the world of blockchain and smart contracts, security is paramount. However, there’s a fine line between ensuring security and creating rigid, inflexible systems. One
Ethernaut Level 15, “Naught Coin,” throws you headfirst into the world of ERC20 tokens and their potential vulnerabilities. This challenge presents a seemingly locked contract
TL;DR In the world of smart contracts, where code governs the execution of transactions and other functions, the importance of proper input validation cannot be
Ethernaut challenges, comparable to a Web3-themed hacking Capture The Flag (CTF) competition, offer a dynamic environment for diving into Ethereum and Solidity programming. Each level,
In a traditional transaction, one party sends funds to another in exchange for goods or services. This exchange typically follows a well-defined sequence of steps.
Access control is a crucial aspect of smart contract security, governing who is authorized to perform specific actions within the contract. Just as a bouncer
TL;DR: Challenge 13: Gatekeeper One, also known as Ethernaut Level 13, stands out because it necessitates a thorough understanding of Ethereum transactions and gas mechanics.
Have you ever sent a cryptocurrency payment and felt like it’s taking forever to confirm? You’re not alone. Unlike swiping your debit card, crypto transactions
Imagine a world where anything digital can be securely owned and traded. Artwork, in-game items, concert tickets, even your loyalty points – all represented by
The rise of Web3 signifies a new era in the internet’s evolution, where decentralization, blockchain, and peer-to-peer networks take center stage. This transformation is creating
Welcome to the fascinating world of smart contracts, where lines of code dictate financial agreements and automate complex processes. But what about time? How do
The JavaScript array is a fundamental building block for storing and manipulating collections of data. But what if you need to edit that data –
Ethernaut Level 12 titled “Privacy” challenges the concept of “private” data on the blockchain. In this level, you’ll encounter a locked contract, and your objective
Decentralized Applications, commonly known as dApps, have revolutionized the way we interact with digital services, providing enhanced security, transparency, and user control. As the backbone
The internet is a vast network of information exchange. But have you ever stopped to think about how this exchange happens securely? When you visit
Ethernaut challenges, comparable to a Web3-themed hacking Capture The Flag (CTF) competition, offer a dynamic environment for diving into Ethereum and Solidity programming. Each level
Imagine a program that relies on stock prices to make investment decisions. It checks its internal database, but the information is outdated. The program is
Imagine a web page as a magnificent castle. The blueprints outlining the structure and layout are similar to HTML (HyperText Markup Language). But a static
Understanding re-entrancy is crucial for anyone developing or auditing Ethereum smart contracts. Failure to properly handle re-entrant calls can result in the loss of funds
TL;DR The Browser Object Model (BOM) allows JavaScript to interact with the browser, enabling dynamic web experiences. Key components include: BOM enables tasks like responsive
Imagine a bustling apartment complex. Multiple tenants share the same building, but each has their own private unit with complete control over the interior. That’s
We all rely on apps in our daily lives – for social media, shopping, banking, and more. But have you ever considered who controls these
Imagine testing software by throwing unexpected scenarios at it, like giving a map app nonsensical directions or feeding gibberish to a search engine. That’s the
TL;DR setTimeout is a JavaScript function that allows you to schedule the execution of code after a specified delay. It’s useful for creating smoother user
TL;DR In today’s digital world, security is paramount. As we increasingly rely on web applications to store sensitive information, it’s crucial to ensure that this
Web3 is an exciting and closely-knit space filled with prospects, where users gain ownership and change ways of interacting online. If you have an outstanding
Delegatecall is a powerful but intricate feature in Solidity that allows contracts to delegate execution to other contracts. Understanding delegatecalls is crucial for building advanced
Imagine a world where you can leverage the same language, JavaScript, that brings websites to life, to power the engines behind those websites. That’s the
The internet thrives on data exchange. From social media updates to online shopping carts, information constantly zips between servers and your device. But how does
In this challenge, we’ll dive into smart contracts’ payment vulnerability and essential security practices to prevent such issues. By the end of ethernaut level 9,
Ethernaut challenges, akin to a hacking Capture The Flag (CTF) for Web3 enthusiasts, provide an immersive platform to explore Ethereum and Solidity programming. Each challenge
TL;DR Solidity contracts interact with other contracts using high-level calls (via interfaces) or low-level calls (call, delegatecall, staticcall). Key Differences: Best Practices: In Solidity, contracts
Metana’s Bootcamp is rewriting the rules of blockchain education by focusing on personal growth and providing each and every student with the skills, industry connections,
For developers, Git is the ultimate companion. It acts as a version control system, meticulously tracking changes made to your codebase. But even the most
Websites that update and respond to your clicks feel like magic, but there’s a logical reason behind it. In this guide, we’ll explore the secret
Imagine you walk into a fancy restaurant, eager to try their new menu. But before you can even glance at the dishes, the waiter informs
Best way to understand asynchronous JavaScript is to imagine you’re juggling. You can keep a few balls in the air at once, but eventually, you’ll
Being relatively new to the Web3 space and having a keen interest in Security has naturally led to me participating the Ethernaut Challenge hosted by
JavaScript, the popular language of the web, breathes life into interactive websites and dynamic applications. But even the most brilliant code can encounter errors, leaving
TL;DR: Imagine a website that’s just a static image, like a printed page. No clicking, no animations, no dynamic content – just… there. Boring, right?
Imagine a super secure way to store information and run programs on the internet, like a giant digital record keeper everyone can trust. That’s what
In this level, we will familiarize ourselves with delegatecall and fallback. This serves as a preliminary step towards understanding more advanced concepts, like the proxy
Hello Everyone! My name is Shiran Sukumar, I am a student at Metana. I wanted to share with you all a walkthrough on how to
Decentralized Autonomous Organizations (DAOs) are reshaping collaboration, but managing their treasuries requires specialized knowledge. This guide will take you through the secrets of effective DAO
This Web3/Solidity-based wargame is akin to a hacking Capture The Flag (CTF) challenge, where each level presents a smart contract puzzle waiting to be ‘hacked’.
Blockchains, the revolutionary technology underpinning cryptocurrencies and decentralized applications (dApps), have a fundamental challenge: SCALABILITY. As these networks gain traction and user adoption increases, their
TL;DR: JavaScript (JS), the popular language of web development, has a unique relationship with object-oriented programming (OOP). In contrast to class-based languages like Java or
JavaScript, the popular language for web development, empowers developers to create dynamic and interactive experiences. At the heart of this dynamism lie control structures –
Blockchain, the underpinning system for recording information, has become more than just the basis for cryptocurrency. Blockchain is a system of recording information in such
JavaScript arrays plays a crucial role in data organization in the language. They provide a flexible and dynamic way to store collections of elements, making
TL;DR A Decentralized Exchange (DEX) allows peer-to-peer trading without intermediaries. To build a basic DEX using Solidity, key components include: Steps to build: Enhancements include
TL;DR: The world of blockchain technology has seen a increase in the development and use of tokens. These digital assets represent ownership, utility, or access
Smart contracts, the self-executing code on blockchains, have revolutionized various industries. From decentralized finance (DeFi) to supply chain management, their potential is undeniable. However, with
Functions are the foundation of well-structured, maintainable, and scalable JavaScript code. They encapsulate a specific task, promoting code reusability and fostering modular programming practices. This
Variables are the fundamental building blocks of any programming language. They act as named containers that store data, allowing us to manipulate and reference that
The world of blockchain technology is full of new and exciting ideas. Blockchains are great because they are very secure and can’t be easily changed,
Blockchain technology is really innovative, and smart contracts are a big part of that. Smart contracts are like automatic agreements that run themselves, but they
JavaScript operators are the building blocks that bring your code to life. They perform actions on values, compare data, control program flow, and manipulate data
JavaScript and Python are two of the most dominant programming languages in the modern era. Both boast vast communities, extensive libraries, and the versatility to
JavaScript (JS) is the most common language used to make websites interactive. From the tiny animations that grab your attention to the complex applications running
Solidity, the programming language for Ethereum smart contracts, excels at automating tasks and enforcing complex logic within the secure confines of the blockchain. However, smart
TL;DR: Solidity, the programming language specifically designed for Ethereum Virtual Machine (EVM), plays a pivotal role in building robust NFT marketplaces. This article explains, NFT
The Ethernaut Level 3, called “Coin Flip,” is a lesson on the weak spots in how smart contracts handle chance and prediction. This article walks
The world of blockchain technology develops on real-time communication and transparency. Smart contracts, the self-executing programs on blockchains, play a significant role in this dynamic
TL;DR: Web3.js is a powerful library that unlocks the potential of interacting with the Ethereum blockchain and other Web3-compliant platforms. One of its core functionalities
Web3.js, a popular JavaScript library, empowers developers to build decentralized applications (dApps) that interact with blockchains. But how do these dApps actually connect to the
Web3.js open up the huge power of Ethereum blockchain for developers. This JavaScript library let’s you talk with Ethereum, allowing you to interact with Ethereum’s
Solidity, the programming language powering Ethereum smart contracts, offers robust tools for code reusability. Two key approaches dominate this landscape: inheritance and libraries. While both
Smart contracts, the self-executing code on blockchains, have revolutionized various industries. They offer trust, transparency, and automation in transactions, forming the backbone of Decentralized Applications
TL;DR: Solidity, the preeminent language for building smart contracts on the Ethereum blockchain and other platforms, empowers developers to create decentralized applications (DApps) that automate
Smart contracts, the self-executing code on blockchains, have revolutionized various industries. From decentralized finance (DeFi) to supply chain management, their potential is undeniable. However, with
The Ethernaut Level 2 offers a fascinating glimpse into the vulnerabilities that can arise from seemingly minor oversights in smart contract development. This article takes
Remember that strange feeling when an ad pops up for that exact pair of shoes you just peeked at online? Web2, the internet we know
TL;DR Etherscan is the leading Ethereum block explorer, but alternatives offer unique features and specialized functionalities. Top options include BscScan (for Binance Smart Chain), Polygonscan
Dive into the world of front-end development, where the magic of your favorite websites unfolds! Have you ever stopped to think about why websites grab
TL;DR Imagine the early days of the Wild West. Untamed potential, a rush of opportunity, but also the risk of chaos without the proper tools.
Have you stumbled upon the acronym DAO and scratched your head in confusion? You’re not alone. Decentralized Autonomous Organizations are the new hot topic in
Ever witnessed a tragicomedy unfold on a computer screen? Imagine someone fervently clicking a JavaScript-generated pop-up, only to spawn more pop-ups with every desperate click.
TL;DR Web3 wallets store and manage crypto, NFTs, and connect to dApps. Types: Top Picks for Beginners: Security Tips: As the digital landscape shifts toward
The world of web3 is booming, and many are eager to jump in and build the future of the internet. One of the most crucial
Are you a full stack development enthusiast looking to enhance your JavaScript skills? Look no further! In this article, we will explore the top 10
Machine learning libraries are like the magic spells of the programming world. With just a few lines of code, you can perform complex tasks, from
Imagine a world full of bugs and weird happenings, but we’re not talking about bugs you find under a rock—we’re diving into the cool world
TL;DR AI won’t replace full-stack developers but will change how they work. AI excels at automating tasks like code generation, design assistance, and testing. Human
TL;DR Ever felt the call of the code? As a business analyst, you understand the “what” behind software, but maybe you’re yearning to unlock the
Forget the tired old resume and cover letter combo. You’re ready to ditch the corporate suits and dive headfirst into the electrifying world of Web3.
This Web3/Solidity-based wargame is akin to a hacking Capture The Flag (CTF) challenge, where each level presents a smart contract puzzle waiting to be ‘hacked’.
Ever found yourself staring at your computer screen, wondering if Solidity has a personal vendetta against you? You’re not alone. Picture this: It’s 2 AM,
EVM (Ethereum Virtual Machine) storage refers to the permanent storage space within the Ethereum blockchain where smart contract data is stored. Each smart contract deployed
Remember Squid Game? Imagine instead of deadly challenges, you competed for unique, tradable in-game NFTs. The loser wouldn’t get eliminated, they’d just have to sell
Ever found yourself mindlessly scrolling through an app, only to realize it’s somehow glued to your hand? Yeah, me too. Mobile apps have sneakily become
Ah, the world of Web3! It’s vast, it’s exciting, and it’s… slightly overwhelming, isn’t it? If you’re feeling lost in the sea of Web3 bootcamps,
Did you know 80% of internet users are concerned about their online privacy? Web3 offers a solution, built on a foundation of powerful protocols. It’s
In today’s world, web development has become more complex and engaging, offering dynamic and responsive user experiences. This evolution has led to the emergence of
TL;DR: In the tech world, full-stack developers are like all-in-one experts who can work on both the front and back ends of websites and apps,
When we visit a website or use a mobile app, the smooth experience we enjoy—the rapid loading of pages, the instant retrieval of our data,
Imagine a world where you have complete control over your finances, without relying on traditional banks or middlemen. This is the promise of Decentralized Finance
Solidity, the language powering Ethereum smart contracts, offers immense potential for building decentralized applications (dApps). However, the unique blockchain environment demands a different approach to
The role of a full stack developer is often seen as a great opportunity, promising the mastery of both front end and back end technologies.
Are you considering a career transition to web development or programming? If so, tech bootcamps with job guarantees can be an excellent option to fast-track
Have you ever wondered how innovative applications securely interact with the Ethereum blockchain? At the heart of this interaction are powerful tools known as Web3.js
Have you ever wanted to make your own website, app, or computer game? Or maybe you’re just curious about how these things are made. Well,
TL;DR Debugging Solidity smart contracts is crucial due to their immutable nature. Hardhat offers a console.log function, similar to JavaScript’s, allowing developers to print variables
In the fast-changing world of technology, understanding what is a Tech Lead– or a Technical lead becomes crucial, as their role is important yet often
“What is Software Engineering?” This question is key to understanding the digital world we live in, where every website visit and app usage is shaped
Machine learning algorithms are at the heart of modern artificial intelligence (AI). These powerful tools teach machines to learn from data, spot patterns, and make
The journey to becoming a successful software engineer is exciting and challenging. In today’s tech-driven world, this role is more than just coding; it’s about
As the digital world continues to evolve rapidly, many are asking, “Are full stack developers in demand?” The answer is a resounding yes. With technological
Are you considering a career in full stack development? Do you find yourself wondering if it’s really as difficult as it seems? In this comprehensive
TL;DR Have you ever faced a sudden stop sign while navigating the Ethereum universe? Meet the execution reverted errors, the EVM’s way of keeping things
Did you know that the number of open full-stack developer jobs is growing 20% faster than the average for all occupations? That’s because they are
In the exciting world of building software, you often hear about full stack developers and software engineers. They kind of seem similar but are actually
TL;DR Blockchain technology has revolutionized the digital world, and at the forefront of this revolution are two key programming languages: Solidity and Rust. The ongoing
TL;DR: Ethereum gas fees are payments for the computational work needed to process transactions on the Ethereum network. They vary based on gas price (cost per unit,
Operators are the mini-commands that make code come alive! They’re like special symbols that tell a computer what actions to perform on values and variables.
TL;DR: Fear of loops and conditionals holding you back from building dApps? Imagine them as tiny switches controlling your smart contracts, like traffic lights guiding
TL;DR In today’s rapidly changing job market, continuous learning and upskilling have become essential for individuals to stay competitive. Recognizing the importance of education and
Does Web3 seem like a complex term? There’s no need to fret, it merely represents the evolution of the internet into something more user-friendly and
You probably already know about Solidity, right? It’s a programming language that helps us create smart contracts on the Ethereum network. It’s quite similar to
Solidity is a popular programming language for writing smart contracts on the Ethereum blockchain. In Solidity, global variables play a crucial role in the functioning
TL;DR Solidity is a high-level programming language specifically designed for developing smart contracts on the Ethereum blockchain. In Solidity, functions are a fundamental building block,
Web3 is a cool new thing that changes the internet to be fair for everyone, like magic! It lets you control your own data. Because
TL;DR:In Solidity, variables are used to store and manipulate data in smart contracts. They are classified into value types (e.g., uint, bool, address, bytes) and
Smart contracts are like digital wizards—self-executing agreements with predefined rules, all meticulously encoded. They’re the enchanting core of blockchain technology, promising a world of transparency
TL;DR: Flash loans are a super cool new idea in the world of decentralized finance (DeFi). They let users borrow as much money as they
Imagine a world where you can prove the truth of a statement without revealing any details about the statement itself. It sounds paradoxical, doesn’t it?
In the fast-paced world of digital tech, Decentralized Autonomous Organizations (DAOs) are changing how we think about organizations. A DAO is a group that runs
Welcome to the amazing world of Web3 Projects GitHub. It’s a place full of new ideas and ways to change how the internet works. If
TL;DR Solidity is the main programming language for creating smart contracts on the Ethereum blockchain. This article covers beginner-friendly Solidity projects like the “Hello, World!”
Blockchain technology is revolutionizing the way we think about data and trust. But what exactly is Layer 1 in blockchain, and why is it so
Learn about machine learning with Scikit-learn (or sklearn for short). This is a tool that helps data scientists and people who love data. In today’s
TL;DR Train and serialize a Scikit-learn model in Python using pickle. Convert it to PMML format with JPMML-SkLearn. Load the PMML model in Java for
Many people want to know, “How can I start a career in AI and Machine Learning?” These two areas are really popular right now. They
In today’s technology-driven world, an intriguing question arises, “What is the career path in Artificial Intelligence (AI)?” AI, a field focused on empowering machines to
If you’re exploring the question, “What is the career path for Machine Learning?“, you’re at the threshold of a field brimming with vast potential. Machine
Have you ever wondered, “Is AI and Machine Learning a good career?” With the rapid advancements in technology, a career in Artificial Intelligence (AI) and
The digital age has witnessed an exponential rise in the importance and applications of data analytics across numerous domains. As the demand for these skills
If you’re asking yourself, “How do I start studying to become a Data Analyst?“, you’re on the threshold of an exciting career path. Data analysis
Introduction In today’s digital age, data analysis has emerged as a crucial driver of success for businesses and industries across the globe. With the exponential
TL;DR: Unsupervised learning analyzes unlabeled data to find patterns and structures without supervision. Key Concepts: Applications: Challenges: 🔍 Why it matters: Unsupervised learning powers AI
Ready to jump into the exciting world of artificial intelligence? You’re in the right place! In this article, we’re going to show you the 5
Classification is a fundamental task in many fields, from computer vision and speech recognition to medical diagnosis and fraud detection. The ability to accurately categorize
TL;DR: Deep learning is a specialized branch of machine learning that mimics the human brain using artificial neural networks. It enables computers to learn from
Ready to make your machine learning projects even better? Let’s look at how to use a neat tool called a Support Vector Machine (SVM). SVMs
Looking to expand your knowledge and skills in blockchain development, AI & ML? With so many online courses and bootcamps available, it can be difficult
Are you looking to dive into blockchain development but not sure which programming language to start with? Look no further! In this article, we’ll explore
In today’s digital age, software developers hold the keys to a virtual world of endless possibilities. They’re the brilliant minds behind the apps we love,
What is a Virtual Machine (VM)? A virtual machine (VM) is a software program that creates a virtual computer within your physical computer. This virtual
The world of smart contracts keeps changing, with new languages coming out all the time. Vyper is one of these new languages. It’s a lot
Solidity: What Is It? Solidity is a computer language that’s used to make smart contracts. Smart contracts are computer programs that run accounts on the
TL;DR: What are Solidity Events? Solidity events are a way for smart contracts to communicate with each other and with external applications. They allow developers
Blockchain technology has changed the way we do transactions because it’s secure, can’t be changed, and is transparent. Solidity is a programming language that was
Web3 coursera courses can help you have an opportunity into the web3 industry. As blockchain technology gains popularity, there is a greater need for qualified
What is Smart Contract ABI? A smart contract ABI, or Application Binary Interface, is a standard way to interact with smart contracts in the Ethereum
How Error Handling is Handled in Solidity Code? Solidity, an object-oriented programming language used for implementing smart contracts on Ethereum and other blockchains, provides several
The world of web development is constantly evolving, and with the rise of web3 technologies, it has never been more exciting. Web3 refers to the
Introduction to Rare Skills The new version of the Internet, called Web3, is bringing lots of fresh and exciting changes. It lets us make apps
Cryptocurrency and blockchain technology have been steadily gaining popularity in recent years, and as a result, there has been an increased demand for developers with
TL;DR: Ethereum development is a high-demand skill in blockchain and programming. To become a proficient Ethereum developer, follow a sequential learning path: By following this
Introduction With the prominence of blockchain technology and the explosive growth of decentralized applications (dApps) and decentralized finance (DeFi), the demand for skilled Solidity developers
Solidity is one of the most important programming languages of the future. As the world continues to move towards a decentralized economy, Solidity plays a
Solidity is a high-level programming language that is primarily used to develop smart contracts on the Ethereum blockchain. It is a powerful tool for creating
In today’s digital age, blockchain technology has revolutionized the way we interact and conduct business. It has brought about a secure and decentralized method of
TL;DR We at Metana, believe that the learning Solidity programming language is essential for building decentralized applications (dApps) on the Ethereum blockchain. It is a
The Origin Story of “Metaverse” Before we get into How to buy land in the Metaverse, Let’s look at how it started. A science fiction
Why Use MetaMask? MetaMask allows interactions between the Ethereum blockchain and a crypto wallet. While it defaults to the Ethereum network, other EVM-compatible chains can
Last year, on a YouTube video posted by Ashton Kutcher and Mila Kunis, titled, “Kitchen Talks”, a trivial question was asked by Ashton, “What is
TL;DR: Ethereum vs. Ethereum Classic Let’s be clear: Ethereum and Ethereum Classic are two huge names in today’s crypto world, but they’re different by design.
Amidst the hue and cry of the crypto crash this year, which has been infamously coined “The Bear Market,” a lot of engineers have been
340000 USD. Pretty big number right? It might be an eye-watering amount for some of us. However, according to the fine folks at Web3.careers, this
Smart-contract in blockchain Blockchain is widely considered to be a speculative good thing, made famous by Bitcoin. But the underlying technology is more interesting in
The blockchain and Web3 industry has created a range of exciting opportunities, catering to both technical and non-technical professionals. Whether you’re a programmer, designer, marketer,
So in our previous post we covered what is web3 so today lets talk about Crypto basics. What is a blockchain? Blockchain is an immutable,
Blockchain Developer: The most hyped job in 2022. A Blockchain developer is a highly skilled individual who can efficiently code for designing, developing, and testing blockchain
Solana is now the fourth-biggest cryptocurrency in the world, but what does the future look like for blockchain developers. Should you learn Solana right now?
The web3 world is strange, crazy, and unpredictable. There are a lot of new jargon, discord talks that move quickly, and blocky pseudonyms. How do
How the Blockchain System Works Blockchain technology is probably the best invention since the internet itself. It allows value exchange without the need for trust
This amazing post was originally posted by Eshita here. To understand Web3, let’s go through the features of Web1 and Web2. Web1: Read-Only The internet
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