.eslintrc.js

// "off" or 0 - turn the rule off
// "warn" or 1 - turn the rule on as a warning (doesn’t affect exit code)
// "error" or 2 - turn the rule on as an error (exit code is 1 when triggered)
module.exports = {
  env: {
    browser: true,
    commonjs: true,
    es6: true,
  },
  //extends: ['eslint:recommended', 'plugin:react/recommended'],
  extends: ['airbnb', 'plugin:react/recommended'],
  parserOptions: {
    ecmaFeatures: {
      experimentalObjectRestSpread: true,
      jsx: true,
    },
    sourceType: 'module',
  },
  rules: {
    'import/no-named-as-default': 0,
    'import/no-unresolved': 2,
    'indent': [1, 2],
    'react/jsx-indent': [0, 2], // warning & 2 spaces
    'no-unused-vars': 1,
    'jsx-a11y/anchor-is-valid': 1,
    'quotes': [1, 'single'],
    'class-methods-use-this': 0,
    'no-console': 2,
    'no-return-assign': 1,
    'semi': ['error', 'never'],
    'react/jsx-uses-vars': 1,
    'react/no-unused-state': 1,
    'react/jsx-key': 2,
    "react/jsx-no-literals": 1,
    'react/prefer-stateless-function': 2,
    'react/jsx-filename-extension': 0,
    'react/forbid-prop-types': 0,
    'react/jsx-indent-props': 'off',
  },
};