Social Media Ideas for Ecmascript Spec

The Abstract Equality Algorithm: What == Actually Does in JavaScript

Not a list of quirks to memorize, a walk through the specification steps that produce them. Most explanations of JavaScript’s == operator work backwards. They start from the famous...

What's new in ECMAScript 2026 (and usable today)

#​793 — July 7, 2026 Read on the Web JavaScript Weekly Vite+ Beta: A Web Dev Toolchain Behind One Command — Vite+ is the Vite team’s ‘unified toolchain’ tha...

The curious case of mathematical precision & legacy JS vs ES6.

Troubles faced with precision 0.3 - 0.2 !== 0.2 - 0.1 because computers understand Base-2 i.e. binary. To store a decimal number, it must be converted to base....

The Event Loop’s Actual Ordering Guarantees

A resolved Promise doesn’t just usually beat setTimeout(fn, 0). The specification requires it to, every single time, for reasons that have nothing to do with which one you wrote fi...

Prototypal Inheritance vs Classical Inheritance

The class keyword made JavaScript look like Java. Underneath, it never stopped being something else entirely. What a prototype chain actually is, and where the Java mental model qu...

SharedArrayBuffer: Browser Support, Isolation, Use Cases

SharedArrayBuffer works in Chrome 68+, Edge 79+, Firefox 79+, Safari 15.2+, and Opera 64+ when the page is cross-origin isolated. Learn the setup and limits.

Anders Hejlsberg demos TypeScript 7's 10x speedup

#​796 — July 28, 2026 Read on the Web JavaScript Weekly Rust Is Eating JavaScript (Still, in 2026) — Our most-read link of 2021 gets an update for 2026. Lee...

CSSOM (Cascading Style Sheets Object Model)

Document Object Model (DOM)

JavaScript Array Methods

An Array is an object type designed for storing data collections. Key characteristics of JavaScript arrays are: Elements: An array is a list of values, known as elements. Ordered:...

CSS @scope: Browser Support, Cascade, Donut Scope

CSS @scope works in Chrome 118+, Edge 118+, Opera 106+, Safari 17.4+ on macOS and iOS, Samsung Internet 25+, and Firefox 146+. Learn cascade and quirks.

JavaScript Safe Integer Limit Explained

JavaScript uses the Number type for both integers and floating-point values. While this simplifies the language, it also introduces an important limitation that every JavaScript de...