.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true
  },
  "extends": ["airbnb", "prettier", "prettier/react"],
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true
    },
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "plugins": ["prettier"],
  "parser": "babel-eslint",
  "rules": {
    "react/jsx-filename-extension": [
      1,
      {
        "extensions": [".js", ".jsx"]
      }
    ],
    "prettier/prettier": [
      "error",
      {
        "trailingComma": "es5",
        "singleQuote": true,
        "printWidth": 120
      }
    ],
    "prefer-destructuring": [
      "error",
      {
        "array": false,
        "object": false
      },
      {
        "enforceForRenamedProperties": false
      }
    ],
    "import/extensions": [
      "error",
      "always",
      {
        "js": "never"
      }
    ],
    "react/forbid-prop-types": 0,
    "no-nested-ternary": 0,
    "no-param-reassign": 0,
    "except-parens": 0,
    "comma-dangle": ["error", "always-multiline"],
    "space-before-function-paren": [
      "error",
      {
        "anonymous": "never",
        "named": "never",
        "asyncArrow": "always"
      }
    ],
    "no-undefined": 0,
    "no-use-before-define": 0,
    "allowImplicit": true,
    "array-callback-return": 0,
    "no-useless-escape": 0,
    "no-fallthrough": ["error", { "commentPattern": "break[\\s\\w]*omitted" }],
    "react/jsx-uses-vars": 2,
    "react/jsx-indent-props": [2, 2],
    "react/display-name": [0, { "ignoreTranspilerName": false }],
    "no-dynamic-require": 0,
    "max-len": 0,
    "no-underscore-dangle": 0,
    "strict": 0,
    "key-spacing": 0,
    "padded-blocks": 0,
    "global-require": 0,
    "consistent-return": 0,
    "guard-for-in": 0,
    "no-restricted-syntax": 0,
    "brace-style": 0,
    "curly": ["error", "multi-line"],
    "no-confusing-arrow": 0,
    "prefer-rest-params": 0,
    "no-trailing-spaces": ["error", { "skipBlankLines": true }],
    "linebreak-style": ["off", "unix"],
    "react/prop-types": 0,
    "no-console": 0,
    "class-methods-use-this": [
      "error",
      {
        "exceptMethods": [
          "componentDidMount",
          "componentDidUpdate",
          "componentWillMount",
          "componentWillReceiveProps",
          "componentWillUnmount",
          "componentWillUpdate",
          "render",
          "shouldComponentUpdate"
        ]
      }
    ]
  },
  "globals": {
    "shallow": true,
    "render": true,
    "mount": true,
    "__DEV__": true,
    "FormData": true
  }
}