storage and memory are two ways of storing data in Solidity. memory is like RAM storage, its data is volatile, it gets destroyed at end of every call and created at start of every function call, similar to RAM is erased when the computer shuts down and data added when…

Why I wrote this blog? I had an assumption that only integers (read operation) does not require gas fees, but as I explored more contracts, below are few different functions that do not consume any gas. Generally functions with view or pure modifier do not incur any gas fees. 1. Printing an integer without reading pure…

Why I wrote this blog? When I started development using hardhat, I only used the local environment for testing, but when I tried to deploy and test my web3 app on a live testnet, I faced a lot of problems and had confusions. The below are article addresses these problems…

Ref: https://stackoverflow.com/questions/71666255/how-to-transfer-a-nft-to-another-smart-contract A NFT Token transfer is successful when, msg.sender is the owner of contract msg.sender is approved for all for the owner msg.sender is approved for that token by the owner Scenario 1: If Token is minted on the NFT Marketplace itself This means that the owners of NFT Marketplace contract and NFT Token contract are the same.

Why I wrote this blog? When starting with smart contract testing, I found it very confusing to understand signers while coding. In this article I will use Hardhat with Ether.js to deploy and interact with blockchain. Signers vs Providers Signers = Ethereum Accounts and we get a signers from a providers Introduction to Signers In-short, signer…

Summary: This article is related to interacting with a smart contract this deployed on either testnet or mainnet of a blockchain. We can always write test cases or scripts to interact with the contract, but remix provides a quick method to query and interact with a live smart contract easily. …

Previous: Guide to Full Stack Solidity Developer — Part 1 If you have no development background, then I will recommend you to first learn HTML, CSS and very basic JS. You can find many beginner videos on youtube like this tutorial. Summary of tech-stack Frontend: Vite-React-Typescript Backend: ExpressJS 2. Frontend: React TS Development As mentioned…

State feature of React, continuous monitor for changes in an state object/variable. If we define a state object, then any changes made to this object by user or JS/TS, will trigger the “React Function/Class Component” call, where the state variables are defined. React Components (Functional or Class) are updated at…