JavaScript is the most in-demand programming language for developer jobs and one of the most versatile languages for full-stack development. Here's what you need to know about JavaScript.

Learn what the "this" keyword does in JavaScript in 100 seconds. And stay tuned for a few minutes of more advanced discussion after the credits.

Built-in JavaScript objects and functions are ones you'll use all the time. Here's how to use Object, JSON, String, Math, Date, and console in your JavaScript programs.

JavaScript had humble beginnings, emerging in 1995 as a "side-kick scripting language" to Java, which was where all the fancy programming tasks was meant to be done in Java applets. These days ...