.eslintrc.json

{
  "extends": ["eslint:recommended", "plugin:react/recommended"],
  "parser": "babel-eslint",
  "plugins": ["react"],
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true,
      "modules": true
    }
  },
  "env": {
    "browser": true,
    "amd": true,
    "es6": true,
    "node": true,
    "jest": true
  },
  "rules": {
    "comma-dangle": 1,
    "quotes": [1, "single"],
    "no-undef": 1,
    "global-strict": 0,
    "no-extra-semi": 1,
    "no-underscore-dangle": 0,
    "no-console": 0,
    "no-unused-vars": 0,
    "no-constant-condition": 0,
    "no-trailing-spaces": [1, { "skipBlankLines": true }],
    "no-unreachable": 1,
    "no-alert": 0,
    "react/jsx-uses-react": 1,
    "no-unused-vars": [1, { "argsIgnorePattern": "^_" }],
    "no-restricted-globals": ["error", "event"]
  },
  "globals": {
    "SyntheticInputEvent": false,
    "SyntheticKeyboardEvent": false,
    "Generator": false,
    "$Keys": false,
    "SyntheticMouseEvent": false
  }
}