https://github.com/mooz/js2-mode

Improved JavaScript editing mode for GNU Emacs
https://github.com/mooz/js2-mode

Last synced: 19 days ago
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Improved JavaScript editing mode for GNU Emacs

• Host: GitHub
• URL: https://github.com/mooz/js2-mode
• Owner: mooz
• License: gpl-3.0
• Created: 2010-03-15T10:04:34.000Z (almost 15 years ago)
• Default Branch: master
• Last Pushed: 2024-04-18T00:06:08.000Z (8 months ago)
• Last Synced: 2024-04-18T01:26:21.396Z (8 months ago)
• Language: Emacs Lisp
• Homepage:
• Size: 2.49 MB
• Stars: 1,320
• Watchers: 46
• Forks: 186
• Open Issues: 61
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

Awesome Lists containing this project

README

        
About [![Build Status](https://github.com/mooz/js2-mode/actions/workflows/test.yml/badge.svg)](https://github.com/mooz/js2-mode/actions/workflows/test.yml) [![GNU ELPA](https://elpa.gnu.org/packages/js2-mode.svg)](https://elpa.gnu.org/packages/js2-mode.html) [![MELPA](https://melpa.org/packages/js2-mode-badge.svg)](https://melpa.org/#/js2-mode)

======

Improved JavaScript editing mode for GNU Emacs ([description here](http://elpa.gnu.org/packages/js2-mode.html)).

For some of the latest changes, see [latest user-visible changes](https://github.com/mooz/js2-mode/blob/master/NEWS.md).

Installation

======

The stable versions are hosted at [GNU ELPA](http://elpa.gnu.org/)

(M-x list-packages).

You can also install the latest development version from

[MELPA](https://melpa.org/#/getting-started).

Requirements

======

Emacs 24.1+ and `cl-lib` (either built-in or installed from GNU ELPA).

React and JSX

======

The currently recommended solution is to install Emacs 27 (you can [build from

source](http://git.savannah.gnu.org/cgit/emacs.git/tree/INSTALL.REPO)

or e.g. install a snapshot from a

[PPA](https://launchpad.net/~ubuntu-elisp/+archive/ubuntu/ppa)) and

use `js-mode` as the major mode. To make use of the JS2 AST and the

packages that integrate with it, we recommend `js2-minor-mode`. See

the corresponding [instructions in the

Commentary](https://github.com/mooz/js2-mode/blob/bb73461c2c7048d811b38e6b533a30fb5fdcea93/js2-mode.el#L57).

`js-mode` in Emacs 27 includes full support for syntax highlighting

and indenting of JSX syntax.

[rjsx-mode](https://github.com/felipeochoa/rjsx-mode/) is an

alternative option which comes with certain tradeoffs.

Bugs

====

* See broken syntax highlighting and timer errors? Recently upgraded

Emacs from version 24.2 or earlier? Try

[reinstalling or byte-recompiling](https://github.com/mooz/js2-mode/issues/72)

the package.

* Any indentation problems should be reported with `M-x report-emacs-bug`

(please try reproducing them with `js-mode` first, for clarity).

Starting with Emacs 25, `js2-mode` delegates indentation to

the indentation engine of `js-mode`.

Please report other problems at .

Contributing

======

`js2-mode` is subject to the same

[copyright assignment](http://www.gnu.org/prep/maintain/html_node/Copyright-Papers.html)

policy as Emacs itself, `org-mode`, `CEDET` and other packages in

[GNU ELPA](http://elpa.gnu.org/packages/).

Any

[legally significant](http://www.gnu.org/prep/maintain/html_node/Legally-Significant.html#Legally-Significant)

contributions can only be accepted after the author has completed their

paperwork. Please ask for the request form, and we'll send it to you.

See Also

======

Some third-party modes that use the generated syntax tree:

* [js2-refactor](https://github.com/magnars/js2-refactor.el)

* [skewer-mode](https://github.com/skeeto/skewer-mode)