I have 3 questions for you. Question 1: Do you know Drizzle, the framework for building Dapp frontend? That can help you massively, and if you don't use it yet, you should watch my video introduction to Drizzle. In a nutshell, Drizzle allow to sync the state of your smart…

So, you are thinking of building a Dapp on Ethereum, but you are still not sure what to build? In this article, I will give a few tips to find some good Dapp ideas. On Ethereum, Dapps can be categorized in 3 categories: Decentralized finance Game Gambling I will give…

In this article you will find 100 questions to prepare your Solidity job interview. Questions are grouped into easy, intermediate and difficult categories. Easy Intermediate Difficult By the way, if you want to make sure you understand and remember all the questions / answers listed in this article, you need…

There are a few other articles /videos that claim to explain how to get a job as a blockchain developer. However, none of these resources were created by people who actually got a job of blockchain developer. Getting a job is hard, and generic advice won't help you much. What…

TLDR: web3-beta 1.0.0-beta.55 npm install web3@1.0.0-beta.35 If you have worked with web3 before, you might have noticed a few.... glitches to say the least. The most annoying thing is that some features tend to break randomly from one release to the other. How can we deal with this, and which…

In Solidity smart contracts, there are 4 memory locations: storage memory stack calldata They all have different lifetimes and it's not always easy to choose which one is right. In the below graph I drew their lifetimes against the execution of blocks, smart contract and functions. Storage is the only…