JavaScript

JavaScript supported by Closure Compiler

By default, Closure compiler supports JavaScript as specified in Ecma-262, edition 6 (PDF).

Here are some pages that we find useful for understanding the language:

• Mozilla's Core JavaScript Reference
• Differences between IE's JScript implementation and JavaScript (PDF)

Using the command-line options --language_in, the compiler can be switched to accept Ecma-262 version 5 or version 5 strict or ECMAScript 3.