## Javascript

### What is it?

- JavaScript is a programming language
- JavaScript runs within web browser
- Key concept in JavaScript is browser events
- But there's more — JavaScript can run on the server and command-line.

### What can it do?

Javascript provides programmatic access to virtually all aspects of a page.

- CSS properties
- Markup content
- Forms, communication to Server
- Add functionality

### ECMAScript and JavaScript

The standard for JavaScript is called ECMAScript.