JavaScript

JavaScript is a high-level programming language that is run in the browser by a JavaScript Engine.

For example the engine that chrome uses is V8, and FireFox uses SpiderMonkey.

These engines interpret and execute JavaScript by following the ECMAScript standard.

Traditionally JavaScript was only run in the browser, but that has changed with JavaScript Runtimes

The most popular of which is called Node.js

The JavaScript section will focus on JavaScript run in the browser.

For JavaScript runtime, look at the specific Node.js section.