.eslintrc.json

{
  "parser": "babel-eslint",
  "env": {
      "browser": true,
      "commonjs": true,
      "es6": true,
      "jest/globals": true
  },
  "settings": {
      "react": {
          "createClass": "createReactClass",
          "pragma": "React",
          "version": "detect"
      }
  },
  "parserOptions": {
      "ecmaFeatures": {
          "experimentalObjectRestSpread": true,
          "jsx": true
      },
      "sourceType": "module"
  },
  "plugins": [
      "jest"
  ],
  "rules": {
      "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
      "comma-dangle": [
          "error",
          "always-multiline"
      ],
      "indent": [
          "error",
          2,
          { "SwitchCase": 1 }
      ],
      "jest/no-disabled-tests": "error",
      "jest/no-focused-tests": "error",
      "jest/no-identical-title": "error",
      "jest/prefer-to-have-length": "error",
      "jest/valid-expect": "error",
      "linebreak-style": [
          "error",
          "unix"
      ],
      "semi": [
          "error",
          "always"
      ],
      "no-console": "error",
      "no-unused-vars": "error",
      "quotes": ["error", "single"],
      "react/prop-types": 0,
      "react/no-unescaped-entities": 0,
      "react/no-children-prop": 0
  }
}