@codility/eslint-config-codility

Codility's shared ESLint config.

Usage

1. Install the package: yarn add @codility/eslint-config-codility --dev --exact
2. Install peer dependencies and optional dependencies if needed
3. Add .eslintrc.js file:

* For the vanilla JS version use this:
    ```
    /* eslint-disable strict */

    'use strict';

    module.exports = {
      extends: ['@codility/eslint-config-codility'],
    };
    ```
* For the React version use this:
    ```
    /* eslint-disable strict */

    'use strict';

    module.exports = {
      extends: ['@codility/eslint-config-codility/react'],
    };
    ```

1. Add scripts to your package.json:

"lint": "eslint .",
"lint:fix": "yarn lint -- --fix"

1. Run lint with yarn lint
2. Let the tool fix your code: yarn lint:fix

Migrating to v.2

Previously the only version available included React plugins and had React as a peer dependency, which was annoying for projects that didn't involve it. That version is now available as @codility/eslint-config-codility/react - simply add /react at the end.

Warnings vs errors rationale

Rules for setting up the rules:

• 0 (off):

- we don't care about the rule - we really don't

• 1 (warn):

- the code can run, but we don't want it on production (e.g. console.log or debugger) - stylistic errors

• 2 (error):

- the code can't run - the code can run, but the behaviour might be unexpected - the code can run, but it contains a typo for sure