java script how to learn it code example

Example 1: js

JavaScript (JS) is a lightweight, interpreted, or just-in-time compiled
programming language with first-class functions. While it is most 
well-known as the scripting language for Web pages, many non-browser
environments also use it, such as Node.js, Apache CouchDB and Adobe
Acrobat.

Example 2: javascript learning

//checkout freecodecamp
https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript/