.eslintrc.js

const path = require('path');
const prettierOptions = require(path.resolve(__dirname, 'prettier.config.js'));

module.exports = {
  parser: '@babel/eslint-parser',
  extends: [
    'plugin:jest/recommended',
    'prettier',
  ],
  plugins: ['prettier', 'jest','@babel'],
  env: {
    jest: true,
    browser: true,
    node: true,
    es6: true,
  },
  parserOptions: {
    ecmaVersion: 6,
    sourceType: 'module',
    ecmaFeatures: {
      experimentalObjectRestSpread: true,
    },
  },
  rules: {
    'prettier/prettier': ['error', prettierOptions],
    'arrow-body-style': [2, 'as-needed'],
    'class-methods-use-this': 0,
    'import/imports-first': 0,
    'import/newline-after-import': 0,
    'import/no-dynamic-require': 0,
    'import/no-extraneous-dependencies': 0,
    'import/no-named-as-default': 0,
    'import/no-unresolved': 0,
    'import/no-webpack-loader-syntax': 0,
    'import/prefer-default-export': 0,
    indent: [
      2,
      2,
      {
        SwitchCase: 1,
      },
    ],
    'max-len': 0,
    'newline-per-chained-call': 0,
    'no-confusing-arrow': 0,
    'no-console': 1,
    'no-unused-vars': 2,
    'no-use-before-define': 0,
    'prefer-template': 2,
    'require-yield': 0,
  },
  overrides: [
    {
      files: ['src/**/*.js?(x)'],
      rules: {
        'prettier/prettier': ['warn', prettierOptions],
      }
    }
  ]
};