An improved JavaScript mode for GNU Emacs.

Features: * variable (adjustable) indentation * accurate syntax highlighting * highlighting of syntactic errors and many semantic errors * strict-mode warning reporting (such as duplicate var declaration) * smart line-wrapping in comments and strings * typing helpers (e.g. matching quotes/brackets) * code-folding (collapse element as {...}) * supports JavaScript 1.5, 1.6 (including E4X), 1.7 and 1.8 * customizable colors, or use font-lock defaults * many customization options

Note - this mode is for GNU Emacs, version 22 and higher. It does not support XEmacs.