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54 lines
1.7 KiB
ReStructuredText
54 lines
1.7 KiB
ReStructuredText
JavaScript coding guidelines
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============================
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Write JavaScript according to the `Airbnb Styleguide <https://github.com/airbnb/javascript>`_, with some exceptions:
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- Use soft-tabs with a four space indent. Spaces are the only way to
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guarantee code renders the same in any person's environment.
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- We accept ``snake_case`` in object properties, such as
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``ajaxResponse.page_title``, however camelCase or UPPER_CASE should be used
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everywhere else.
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Linting and formatting code
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Wagtail uses the `ESLint <https://eslint.org/>`_ linter to help check your code meets the
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styleguide. You'll need node.js and npm on your development machine.
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Ensure project dependencies are installed by running ``npm install --no-save``
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Linting code
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------------
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.. code-block:: console
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$ npm run lint:js
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This will lint all the JS in the wagtail project, excluding vendor
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files and compiled libraries.
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Some of the modals are generated via server-side scripts. These include
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template tags that upset the linter, so modal workflow JavaScript is
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excluded from the linter.
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Formatting code
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---------------
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.. code-block:: console
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$ npm run lint:js -- --fix
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This will perform safe edits to conform your JS code to the styleguide.
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It won't touch the line-length, or convert quotemarks from double to single.
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Run the linter after you've formatted the code to see what manual fixes
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you need to make to the codebase.
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Changing the linter configuration
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---------------------------------
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The configuration for the linting rules is managed in an external
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repository so that it can be easily shared across other Wagtail projects
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or plugins. This configuration can be found at
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`eslint-config-wagtail <https://github.com/wagtail/eslint-config-wagtail>`_.
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