An explainer for developing single-page applications using only vanilla techniques.

A recent talk I gave about JavaScript bundlers. It’s a bit of a history lesson, and along the way I tried to introduce what bundlers are, why you’d use one, ...

In this post you'll learn about JavaScript's Execution Context. Along the way, you'll learn other advanced topics like hoisting, the scope chain, and closures.

JavaScript relies on garbage collection (GC) to reclaim memory.

In this post you'll learn 5 rules for understanding JavaScript's 'this' keyword as well as JavaScript's bind, call, and apply array methods.

In this blog post, we look at three ways of processing Arrays: The for-of loop The Array method .reduce() The Array method .flatMap() The goal is to help you choose between these features whenever you need to process Arrays. In case you don’t know .reduce() and .flatMap() yet, they will both be explained to you. In order to get a better feeling for how these three features work, we use each of them to implement the following functionality: Filtering an input Array to produce an output Array Mapping each input Array element to one output Array element Expanding each input Array element to zero or more output Array elements Filter-mapping (filtering and mapping in one step) Computing a summary for an Array Finding an Array element Checking a condition for all Array elements Everything we do is non-destructive: The input Array is never changed. If the output is an Array, it is always freshly created.

A fun and tricky JavaScript quiz

The official site of Zhenghao He, a software engineer and a TypeScript/JavaScript enthusiast.

No JavaScript frameworks were created during the writing of this article.

It’s been a long time coming, but we finally now have the built-in `structuredClone` function to make deep cloning objects in JavaScript a breeze

News, articles and all things JavaScript ecosystem - straight from the StackBlitz team! ⚡️

I compiled a list of 7 interesting and increasingly challenging questions on JavaScript closures. Can you answer them?

This is about one JavaScript tip every day! JavaScript resources, react, angular, node, performance, front-end

What's special about this article?

Identify and fix common JavaScript memory leaks (Node.js and Deno.js)