I found two useful posts on that: Prototypes in JavaScript from Rupesh Mishra and A Beginner's Guide to JavaScript's Prototype from Tyler McGinnis. This is a JavaScript pillar that you can't escape, so you better learn what it means. Alexey Samoshkin wrote a guide on JavaScript coercion that's really interesting! Prototypes in JavaScript What actually happens when JavaScript interprets '1' = 1? Hint: coercion. For that Tyler Mc Ginnis got your back with an awesome post on execution context, hoisting, scopes and closures. You need to know what JavaScript actually does when running a program. Execution context, hoisting, scopes and closures There are two excellent videos on that: In The Loop from Jake Archibald and What the heck is the event loop anyway from Philip Roberts.

The dreaded event loopĭid you know that JavaScript executes synchronously? But then how can you make API calls and still not block the page? Introducing the event loop and browser APIs.

You'll realize how typing JavaScript can make it more performant for v8. Lydia Hallie explained it well in this post about the JavaScript engine. To run code, you need an engine to run it. Kyle Simpson explained it in the first chapter of You Don't Know JS Yet. Multi-paradigm, dynamically typed, single-threaded, ECMAScript specification. To level-up your JavaScript skills, you'll need to know: What is JavaScript I read and watched many resources to get better at JavaScript, and I want to share that with you today. To better understand JavaScript, you need to deeply understand its foundations and how it works under the hood. There's more to JavaScript you need to learn. When discovering JavaScript, you first learn variables, if statements, loops, arrays, objects, functions! Maybe you even know what is this and how to use async/await.īut that's just the tip of the iceberg. JavaScript has never been more used than today.

You dont know js hoisting