How to install

1. Install dependencies:

   Common (should be installed in any case):

   npm install --save-dev eslint eslint-plugin-import

   React-specific (required if you are using react):

   npm install --save-dev eslint-plugin-jsx-a11y eslint-plugin-react eslint-plugin-react-hooks

   Typescript-specific (required if you are using typescript):

   npm install --save-dev @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint-import-resolver-typescript

2. Install config:

   npm install --save-dev eslint-config-avasuro

3. Create .eslintrc.js in the project root with the following content:

    const avasuroEslint = require('eslint-config-avasuro');
    const {INDENT, QUOTES, PLUGINS} = require('eslint-config-avasuro/constants');
   
    module.exports = {
        extends: [
           avasuroEslint({
                config: {
                    indent: INDENT.SPACES_2, // <- use 2-spaces indentation
                    quotes: QUOTES.SINGLE // <- use single quotes
                },
                plugins: [
                    PLUGINS.CORE,
                    // PLUGINS.REACT, // <- uncomment to turn on rules for React
                    // PLUGINS.TYPESCRIPT // <- uncomment to run on rules for Typescript
                ]
            })
        ]
    };

API

Constructor avasuroEslint expects an object as first argument which can have only three props: config, plugins and env

env

Environment, in which eslint works. Can be development and production. Value development allows to reduce severity level of some rules (warn instead of error). This features allows to not break the build in development if some rule (e.g. no-debugger) throws an error.

Example of usage with create-react-app:

// Here assume that create-react-app is used (so process.env.NODE_ENV is defined properly):
module.exports = {
    extends: [
      avasuroEslint({
         env: process.env.NODE_ENV, // <- use current env variable to control severity level of some rules
         config: { /*...*/ },
         plugins: [ /*...*/ ]
      })
   ]
};

Example of usage - always development mode:

const {ENVS} = require('eslint-config-avasuro/constants');

module.exports = {
   extends: [
      avasuroEslint({
         env: ENVS.DEVELOPMENT,
         config: { /*...*/ },
         plugins: [ /*...*/ ]
      })
   ]
};

config

Props:

Prop	Possible value	Default value
indent	'tab', number	4
quotes	'single', 'double'	'single'

plugins

Array of additional plugins. Used when it is needed to connect additional esilnt rules, e.g. for React or Typescript

Possible values: 'core', 'react', 'typescript'