© 2023 Hashnode
#ethereum
If you're looking to deploy a smart contract on any EVM (Ethereum Virtual Machine) chain, you may have encountered some roadblocks. With different chains having their own unique quirks, it can be challenging to navigate the process of deplo…
This is similar to the previous challenge Gatekeeper One in the sense that, it also has three modifiers/gates that you need to pass. You will learn about extcodesize() and the bitwise XOR operator. T…
Before we start to understand how ERC (Ethereum request for comment) tokens work, we need to understand what EIPs (Ethereum improvement proposals) are. EIPs are standards specifying potential new feat…
I will explain the challenge in a slightly different way this time, usually, we start with some background information, look at the code, and then write a solution. This challenge is different as ther…
Signatures can be used in Ethereum transactions to validate computation performed off-chain, helping to minimize on-chain gas fees. Signatures are primarily used to authorize transactions on behalf of the signer and to prove that a signer s…
In the previous article in this series, we saw how you could create your multi-sig wallet contract using Solidity. In this article, we will continue the journey and create a contract factory for that …
This guide will show you how to deploy any smart contract to the Ethereum network. By the end, you'll learn how to create a simple NFT Drop smart contract, deploy it to the Sepolia testnet, and mint a…
If you are into blockchain or crypto space for a while, you may have heard of Gas. Gas is the fee required by any transaction to get minted/verified on the blockchain. So what is the fee for? Gas Fee = amount of tokens that will be burnt f…
In this guide, I'll show you how to create a full-stack web3 application on the Polygon zkEVM. By the end of the guide, we'll cover how to: Set up our wallet to connect to the Polygon zkEVM Create a…
This challenge is marked as a 4/5 difficulty level problem but would fail to meet your expectations. If you remember the Vault - Level 8, you pretty much understand the background required to get your…
