Yohann Legrand
JavaScript for Breakfast

JavaScript for Breakfast

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Understanding equality of values in JavaScript (+ React useEffect dependencies)

Oct 26, 20218 min read

Photo by Tingey Injury Law Firm Equality of values in JavaScript: for years, this has been a quite obscure topic for me. How many times have I been confused by an if statement behaving in a surprising way, I cannot count. So: what are we talking abou...

Understanding equality of values in JavaScript (+ React useEffect dependencies)

Manipulating arrays by use case

Jul 6, 20217 min read

Photo by Elisa Calvet B. Intro There are so many ways to create and manipulate arrays in JavaScript that it can be confusing at first. And even after years of practice, it can still be hard to remember which method to use, and when. This post aims t...

Manipulating arrays by use case

New ES2021 JavaScript features (now available)

Jun 29, 20214 min read

Photo by James Harrison In case you missed it, the new ES2021 JavaScript features have been recently approved by the Ecma General Assembly and are now already supported by recent versions of the most popular browsers, yeay šŸŽ‰ šŸ“ Note: For older bro...

New ES2021 JavaScript features (now available)

(Part 2) Build quality forms with React šŸš€

Jun 18, 20218 min read

Photo by Kelly Sikkema This article is the second and final part of "Build quality forms with React šŸš€". In the first part, I explained what controlled and uncontrolled forms are in React, and I introduced two wonderful libraries: react-hook-form an...

(Part 2) Build quality forms with React šŸš€

(Part 1) Build quality forms with React šŸš€

Jun 16, 20216 min read

Photo by Kelly Sikkema When it comes to building forms with React, there are tons of possibilities out there in the React Ecosystem. Many libraries have emerged to answer specific needs, and it can be a little bit overwhelming at first: which one to...

(Part 1) Build quality forms with React šŸš€

Master the art of React.useEffect

May 11, 20219 min read

When I started learning React, I made a few mistakes with the way I was using React.useEffect, especially managing the dependencies. My effects kept on running when I didn't want them to run, causing strange bugs in my apps. So today I would like to ...

Master the art of React.useEffect