Difference between revisions of "Js2-mode"

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== Helpful keybindings ==
+
== Features ==
 +
 
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* accurate '''syntax highlighting''' using a recursive-descent parser
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* on-the-fly reporting of '''syntax errors''' and strict-mode warnings
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* undeclared-variable warnings using a configurable externs framework
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* "bouncing" line indentation to choose among alternate indentation points
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* '''smart line-wrapping''' within comments and strings
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* '''code folding''':
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** show some or all function bodies as {...}
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** show some or all block comments as /*...*/
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* context-sensitive '''menu bar''' and popup menus
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* code browsing using the [[Imenu]] package
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* many customization options
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* strict recognition of the Ecma-262 language standard
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* support for most Rhino and SpiderMonkey extensions from 1.5 and up
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* parsing support for ECMAScript for XML (E4X, ECMA-357)
  
 
== Common Customization ==
 
== Common Customization ==
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== Tutorial Pages ==
 
== Tutorial Pages ==
  
[[Category:Programming]][[Category:Third Party Package]]
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[[Category:JavaScript]]
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[[Category:Programming]]
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[[Category:Third Party Package]]

Latest revision as of 21:20, 12 June 2017

js2-mode
Description major mode for JavaScript programming
Author Steve Yegge
Maintainer FSF
Source http://bzr.savannah.gnu.org/lh/emacs/elpa/annotate/head:/packages/js2-mode/js2-mode.el
Part of Emacs no

js2-mode provides Emacs font-lock, indentation, and navigation for the JavaScript programming language. It also features an advanced JavaScript parser.

The original repository (at Google Code) seems to be outdated and https://github.com/mooz/js2-mode#readme seems to be a maintained fork. It includes several changes.

Basic setup

(package-install "js2-mode")
(require 'js2-mode)

Features

  • accurate syntax highlighting using a recursive-descent parser
  • on-the-fly reporting of syntax errors and strict-mode warnings
  • undeclared-variable warnings using a configurable externs framework
  • "bouncing" line indentation to choose among alternate indentation points
  • smart line-wrapping within comments and strings
  • code folding:
    • show some or all function bodies as {...}
    • show some or all block comments as /*...*/
  • context-sensitive menu bar and popup menus
  • code browsing using the Imenu package
  • many customization options
  • strict recognition of the Ecma-262 language standard
  • support for most Rhino and SpiderMonkey extensions from 1.5 and up
  • parsing support for ECMAScript for XML (E4X, ECMA-357)

Common Customization

See Also

Tutorial Pages