JavaScript
91 articles · all categories
8 articles from 2021 · show all
December 2021
pg-mem and jest for smooth integration testing
The cult of TDD leads you down a dark and stormy path towards brittle code with a false sense of security. But there is a better way. A sweet spot between unit and heavy integration.
Why null checks are bad
Every null or undefined check doubles the number of tests you need 😱
Small choices can wreck your codebase
wanna see the strangest looping construct I've found in production code?
November 2021
Finding unresolved promises in JavaScript
JavaScript is a fantastic server-side language because it's async. That also makes it tricky. 💩 What happens when you swallow errors? Forget to resolve promises? Or run into a number of other anti-patterns
October 2021
Learn TypeScript in 5 minutes
TypeScript solves many of JavaScript's sharpest edges. You don't need much to get started ✌️
September 2021
Stop SHOUTING = 'shouting'
A hill I will die on 👉 global CONSTANT = 'constant' are bad
June 2021
A surprising feature of JavaScript optional chaining
This blew my mind, thought you'd like it too. You can do more with ?. than you thought.
April 2021
2 quick tips for 250% better Lighthouse scores – CodeWithSwiz 28
Your site may be fast for users, but Google don't care. Official metrics or bust.