The Metana Blog
Meet our authors →Guides, tutorials and explainers on Blockchain from Metana's instructors and editorial team.
BlockchainThe 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 environment. They can emit…
BlockchainTL;DR: Web3.js Basics: Use Web3.js to connect to the Ethereum network via providers like Infura or Alchemy. Transaction Creation: Construct transaction objects with details like sender, receiver, value, gas, and…
BlockchainWeb3.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 underlying network and perform…
BlockchainWeb3.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 decentralized network from your web applications. With…
BlockchainTL;DR EVM execution reverted errors occur when smart contracts encounter rule violations, preventing incorrect transactions from executing on the Ethereum blockchain Common causes include business logic violations,…
BlockchainTL;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, in Gwei) and gas limit (maximum units allocated per…
BlockchainTL;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 reference types (e.g., string , arrays , structs ,…
BlockchainTL;DR: Flash loans are uncollateralized loans that must be borrowed and repaid within a single transaction block, primarily used for arbitrage opportunities. Aave is a decentralized finance (DeFi) protocol on the…
BlockchainImagine 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? How can one demonstrate knowledge of a secret without disclosing…
BlockchainIn 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 on blockchain. It works based on rules set up in smart…
BlockchainBlockchain technology is revolutionizing the way we think about data and trust. But what exactly is Layer 1 in blockchain, and why is it so important? In simple terms, Layer 1 blockchain is the foundation of all…
BlockchainAre 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 the best programming language for blockchain development that…
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