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Author: Metana Editorial

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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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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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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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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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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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

What Are WebSockets and How Do They Work?

WebSockets have revolutionized web development, enabling real-time, bidirectional communication between clients and servers. WebSockets play a crucial role in the Web3 ecosystem by enabling real-time,

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Full-Stack

Full Stack Developer Roadmap for 2024

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. These

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Web3.0

10 Ultimate Open-Source Web3 Projects

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

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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

Read More »
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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