JavaScript, often abbreviated as JS, is a high-level, interpreted scripting language that conforms to the ECMAScript specification. It is a language that is also characterized as dynamic, weakly typed, prototype-based and multi-paradigm.

Including JavaScript in HTML

To include JavaScript inside a page, you can use the script tag inside the head or body sections of your HTML document. You can either include JavaScript directly inside these tags or link to an external file that contains the script.

Or for external JavaScript files:

Variables

JavaScript variables can be declared using var, let, or const.

Functions