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Author: Metana Editorial

AI & Machine Learning

Is It Hard To Become A Data Analyst?

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

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crypto faucet safety
Crypto Faucets

Are Crypto Faucets Safe To Use?

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.

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Web3.0

What Are WebSockets and How Do They Work?

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

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smart contract mistakes and fixes
Smart Contracts

15 Common Smart Contract Vulnerabilities (and Fixes)

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:

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sepolia vs goerli
Crypto Faucets

Sepolia vs Goerli: Which Ethereum Testnet Should I Use?

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.

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what does a devOps engineer do
Full-Stack

What Does a DevOps Engineer Do?

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.

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Full Stack Developer Roadmap 2025
Full-Stack

Full Stack Developer Roadmap for 2025

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.

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best tech jobs for women 2025
Jobs

15 Best Tech Jobs for Women: 2025

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.

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Is Sepolia ETH Real Money
Crypto Faucets

Is sepolia ETH real money?

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.

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Blockchain and AI 2025
AI & Machine Learning

Blockchain and AI: Beginner Guide 2025

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.

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Metana Sepolia Faucet for Web3 Learners
Crypto Faucets

What Is Metana Sepolia Faucet: Why Web3 Learners Need It

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.

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DeFi-smart contracts
Smart Contracts

Understanding DeFi Smart Contracts: Beginners Guide

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.

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15-Must-Have-Testnet-Faucets-2025
Crypto Faucets

15 Must-Have Testnet Faucets in 2025

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.

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Web3.0

Decentralized Identity in Web3: What and Why?

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.

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Development

Top 5 Mistakes Beginner Developers Make

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.

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Is-a-Data-Science-Bootcamp-Worth-It-2025
Data Science

Is a Data Science Bootcamp Worth It in 2025?

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.

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Testnet Faucet
Blockchain

What Is A Testnet Faucet?

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.

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coding jobs 2025
Full-Stack

What Kind of Coding Jobs Can You Get In 2025?

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.

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Career-Quest-2025-Metana-x-Decentraland
Events

Career Quest 2025: Decentraland x Metana

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.

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What-Is-Intergrated-Development-Environment-IDE
Development

What is an IDE (Integrated  Development Environment): Beginner Guide 2025

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.

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sepholia-faucet-complete-beginners-guide
Crypto Faucets

Sepolia Faucets: The Complete Beginner’s Guide

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.

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Front-End

Why You Should Learn HTML5?

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

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Top-15-Web3-Trends-To-Watch-2025
Web3

Top 15 Web3 Trends To Watch In 2025

The current state of Web3 technology is characterized by its shift towards decentralization. Key technological foundations include blockchain, distributed ledger technology, and decentralized networks.

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Full-Stack

Adopting DevOps Best Practices

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

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Full-Stack

Understanding Low Code Development

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

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Full-Stack

Cyber Security vs Ethical Hacking

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

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Blockchain

Blockchain and Fintech: The Future of Finance

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,

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Full-Stack

Why Web2 Isn’t Dead Yet?

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

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Full-Stack

The Ultimate Guide to JavaScript Proxy

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,

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Blockchain

JavaScript Hoisting [Explained]

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

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Full-Stack

JavaScript Data Types

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

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Full-Stack

Lexical Scope in JavaScript

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,

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Full-Stack

JavaScript Memory Management

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

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Full-Stack

Promises vs Callbacks in Javascript

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

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Blockchain

Best Cryptocurrencies to Invest

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

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Smart Contracts

Interoperability in Smart Contracts

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

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Jobs

Enhancing Critical Thinking at Work

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

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Full-Stack

The Python Return Statement

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

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Blockchain

How to Conduct A Research on Blockchain

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

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Web3.0

What is Solscan and How to Use It

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

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Jobs

How Metana’s JobCamp Makes a Difference

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

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Uniswap

Getting Started with Uniswap V4

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

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Front-End

How To Become a UX Researcher ?

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,

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Full-Stack

Best Paying Developer Jobs in 2025

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

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Jobs

What Does a Sales Engineer Really Do?

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

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Blockchain

What are Real World Assets (RWAs)

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

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Full-Stack

Top 10 Tech Companies in Austin

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,

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Jobs

Can I Work In Tech As a Nurse?

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

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Blockchain

What is BscScan and How Does it Work?

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.

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Web3.0

What are EVM Compatible Blockchains?

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)

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Front-End

How to Create a Responsive Website

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

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AI & Machine Learning

What is Long Short-Term Memory? [LSTM]

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

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Web3.0

What is ETHDenver?

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

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Blockchain

What is Bytes32 in Solidity?

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.

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Smart Contracts

Easy Guide to Converting Wei to Gwei

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

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Solidity

What is Solidity: A Simplified Guide

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

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Solidity

Is Solidity Worth Learning In 2024?

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

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Full-Stack

JavaScript and JSON: Working with Data

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,

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Smart Contracts

Mixed Accounting in Smart Contracts

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

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Smart Contracts

Oracle Dependence in Smart Contracts

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

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Smart Contracts

Flash Loan Attacks in Smart Contracts

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

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Smart Contracts

Governance Attacks in Smart Contracts

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

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Full-Stack

Bcrypt and JWT: Web App Security

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

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Blockchain

DAO Treasury Management

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

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Blockchain

The Rise of Layer 2 Solutions

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

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Full-Stack

Object Oriented JavaScript

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

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Full-Stack

JavaScript Control Structures

JavaScript, the popular language for web development, empowers developers to create dynamic and interactive experiences. At the heart of this dynamism lie control structures –

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Full-Stack

JavaScript Arrays

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

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Full-Stack

Functions in JavaScript

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

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Full-Stack

JavaScript Variables

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

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Full-Stack

Javascript Operators

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

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Blockchain

What are Web3.js Providers [Explained]

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

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Web3.0

Top 10 Etherscan Alternatives in 2025

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

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Web3.0

How Does a DAO Work?

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

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Full-Stack

How Hard Is It to Learn JavaScript?

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.

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Smart Contracts

10 Best Practices for Smart Contract Coding

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

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Smart Contracts

What is the Solidity Console Log?

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

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Web3.0

Is the Metana Bootcamp Legit?

Looking to expand your knowledge and skills in blockchain development, AI & ML? With so many online courses and bootcamps available, it can be difficult

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Blockchain

What are Events in Solidity?

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

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Smart Contracts

Can I learn Solidity for free?

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

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Blockchain

Is Solidity Hard to Learn?

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

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Web3.0

Web3: in a nutshell

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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Get a detailed look at our Software Engineering Bootcamp

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You are downloading 2025 updated Software Engineering Bootcamp syllabus!

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Get a detailed look at our Full Stack Bootcamp

Understand the goal of the bootcamp

Find out more about the course

Explore our methodology & what technologies we teach

You are downloading 2025 updated Full stack Bootcamp syllabus!

Download the syllabus to discover our Full-Stack Software Engineering Bootcamp curriculum, including key modules, project-based learning details, skill outcomes, and career support. Get a clear path to becoming a top developer.

Software Engineering Syllabus Download

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