@map-colonies/eslint-config

ESLint config

A collection of ESLint configs for various frameworks and environments. The package only supports eslint 9 and above using the flat configuration.

Available Configs

• ts-base: base configurations for TypeScript.
• React: rules for React (extends react-app).
• Jest: rules for Jest.

Installation

base

$ npm install --save-dev eslint @map-colonies/eslint-config

react

$ npm install --save-dev @map-colonies/eslint-config eslint-plugin-react eslint-plugin-react-hooks

jest

$ npm install --save-dev @map-colonies/eslint-config eslint-plugin-jest

Usage

Add the configs you want to the eslint configuration file of your choice. In this example we are using the file eslint.config.mjs For more information check the following link Configuration Files .
Note: make sure to add ts-base last.

import tsBaseConfig from '@map-colonies/eslint-config/ts-base';
import { config } from '@map-colonies/eslint-config/helpers';

export default config(tsBaseConfig);

Debug

If you want to check the ESLint configuration, debug problems or just see the final configuration, you can the following command that will open the eslint configuration UI in your browser.

npx eslint --inspect-config .

For more information check the following link debug.

Adding new Configs

Add a new file and name it as you would like. Inside export the ESLint configuration.

module.exports = {
  extends: ['plugin:jest/recommended', 'plugin:jest/style'],
  plugins: ['jest'],
  env: {
    'jest/globals': true,
  },
};

after you finished developing the config, make sure it works by using the --print-config flag of ESLint, in the project you use for testing.

$ npx eslint --print-config index.ts

Don't forget adding the config to this readme :blush:

Issues

If any linting error is appearing twice, or you have any other problem, please open an issue with all the details you have.