0
0
mirror of https://github.com/wagtail/wagtail.git synced 2024-11-25 13:10:14 +01:00
wagtail/docs/contributing/javascript_guidelines.rst
Tim Heap 254e675634 Use .. code-block:: console for all shell commands
This is the correct lexer for interactive console sessions, according to
<http://pygments.org/docs/lexers/>. This does require command lines to
be prefixed with `$`, otherwise they are interpreted as the output of a
command. It highlights the command nicely, including environment
variables, strings, and comments.
2016-11-28 13:41:35 +00:00

57 lines
1.8 KiB
ReStructuredText

JavaScript coding guidelines
============================
Write JavaScript according to the `Airbnb Styleguide <http://github.com/airbnb/javascript>`_, with some exceptions:
- Use soft-tabs with a four space indent. Spaces are the only way to
guarantee code renders the same in any person's environment.
- We accept ``snake_case`` in object properties, such as
``ajaxResponse.page_title``, however camelCase or UPPER_CASE should be used
everywhere else.
Linting and formatting code
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Wagtail provides some tooling configuration to help check your code meets the
styleguide. You'll need node.js and npm on your development machine.
Ensure project dependencies are installed by running ``npm install``
Linting code
------------
.. code-block:: console
$ npm run lint:js
This will lint all the JS in the wagtail project, excluding vendor
files and compiled libraries.
Some of the modals are generated via server-side scripts. These include
template tags that upset the linter, so modal workflow JavaScript is
excluded from the linter.
Formatting code
---------------
.. code-block:: console
$ npm run format:js
This will perform safe edits to conform your JS code to the styleguide.
It won't touch the line-length, or convert quotemarks from double to single.
Run the linter after you've formatted the code to see what manual fixes
you need to make to the codebase.
Changing the linter configuration
---------------------------------
Under the hood, the tasks use the `JavaScript Code Style <http://jscs.info/>`_ library.
To edit the settings for ignored files, or to change the linting rules,
edit the ``.jscsrc`` file in the wagtail project root.
A complete list of the possible linting rules can be found here:
`JSCS Rules <http://jscs.info/rules.html>`_