The Metana Blog

Guides, tutorials & career tips.

Expert-written guides on Full-Stack Development, Web3, AI, Data, and Cybersecurity — built for aspiring engineers and tech professionals ready to level up.

Ethernaut Walkthrough

Ethernaut Level 6 Walkthrough: Delegation

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 pattern.This article will clarify delegatecall…

Vinh TranMay 3, 2024Read

Ethernaut Walkthrough

Ethernaut Level 5 Walkthrough: Token

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 approach and solve an Ethernaut challenge. Ethernaut is a fantastic learning resource for…

Shiran SukumarMay 3, 2024Read

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 treasury management,…

Metana EditorialMay 2, 2024Read

Ethernaut Walkthrough

Ethernaut Level 4 Walkthrough: Telephone

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’. It’s an immersive and interactive way to learn about…

Sven DaneelMay 1, 2024Read

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,…

Metana EditorialApril 30, 2024Read

Full-Stack

Object Oriented JavaScript

TL;DR: JavaScript utilizes a prototype-based inheritance model, differing from class-based languages. Key OOP concepts in JavaScript include objects, classes (introduced in ES6), properties, methods, inheritance,…

Metana EditorialApril 26, 2024Read

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 – the building blocks that determine the…

Metana EditorialApril 25, 2024Read

Blockchain

Why Do People from Other Fields Succeed in Blockchain?

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 a manner that it makes information almost…

Metana EditorialApril 24, 2024Read

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 them essential for various web development tasks, from…

Metana EditorialApril 23, 2024Read

Blockchain

How to Create a Decentralized Exchange (DEX) Using Solidity

TL;DR A Decentralized Exchange (DEX) allows peer-to-peer trading without intermediaries. To build a basic DEX using Solidity , key components include: Liquidity Pools : Users contribute tokens, enabling trades. AMM…

Metana EditorialApril 22, 2024Read

Blockchain

How to Create a Token with Solidity

Discover how to create an ERC-20 token with Solidity step-by-step—from setting up your environment to writing, testing, and deploying on Ethereum. Whether you’re a beginner or seasoned dev, this guide makes token develop

Metana EditorialApril 19, 2024Read

Smart Contracts

Smart Contract Auditing: Essential Guide for Blockchain Security

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 great power…

Metana EditorialApril 18, 2024Read

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