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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.
Full-StackBoost Web Speed Fast: Essential JavaScript Minifier Tips
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 experience on a web app is a key factor that decides
Metana EditorialJuly 30, 2024Read
Full-StackJavascript Events: Beginners’ Guide
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 the user flow. This situation needs serious
Metana EditorialJuly 29, 2024Read
JobsHow to Find a Job That Suits Me: Your Questions Answered
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. According to a Gallup study, only 34% of employees in the U.S. feel eng
Metana EditorialJuly 26, 2024Read
Full-StackJavaScript Frameworks: Angular vs React vs Vue
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 out due to the
Metana EditorialJuly 25, 2024Read
Ethernaut WalkthroughEthernaut Level 19 Walkthrough: Alien Codex
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 overflow and memory manipulation within Solidity. Our ultimate goal is
Ana RojoJuly 23, 2024Read
Full-StackJavaScript 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, a robust and efficient data ha
Metana EditorialJuly 19, 2024Read
Web3.0What is a Web3 Wallet and How Does It Work?
Discover what a Web3 wallet is and how it works, including its role in the decentralized web and blockchain technology.
Metana EditorialJuly 16, 2024Read
Ethernaut WalkthroughEthernaut Level 18 Walkthrough: Magic Number
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. Well, today was the time for Ethernaut Level 18, titled “Magi
Ana RojoJuly 15, 2024Read
Smart ContractsAre Compiler Bugs in Smart Contracts a Hidden Risk?
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 machine code that the blockchain understan
Metana EditorialJuly 13, 2024Read
Smart ContractsCombating Frontrunning: Ensuring Fairness in Web3 DEXes
Web3 promises a democratized financial landscape, but a shadow lurks within its decentralized exchanges (DEXes) – Frontrunning. This exploitative practice leverages knowledge of upcoming transactions to gain an unfair ad
Metana EditorialJuly 12, 2024Read
Smart ContractsAre You Assuming Immutability? Pitfalls and Solutions in Web3
Immutability – the cornerstone of blockchain technology – guarantees that once data is written, it cannot be altered. This concept empowers transparency and trust, making blockchain a revolutionary technology for various
Metana EditorialJuly 12, 2024Read
Smart ContractsMitigating Overpowered Admins in Web3 for Better Security
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 very principle: Overpowered Admins. Granting
Metana EditorialJuly 11, 2024Read
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