.eslintrc

{
  "extends": "eslint:recommended",
  "parser": "@babel/eslint-parser",
  "env": {
    "browser": true,
    "node": true,
    "mocha": true,
    "es6": true,
    "jest": true
  },
  "plugins": [
    "react",
    "babel"
  ],
  "rules": {
    # Posible errors
    "no-extra-parens": 0,
    "valid-jsdoc": [1, { "requireReturn": false }],
    # Best practices
    "accessor-pairs": 1,
    "block-scoped-var": 1,
    "complexity": 1,
    "consistent-return": 1,
    "curly": [1, "multi-line"],
    "dot-location": [1, "property"],
    "dot-notation": 1,
    "eqeqeq": 1,
    "guard-for-in": 1,
    "no-alert": 1,
    "no-caller": 2,
    "no-div-regex": 1,
    "no-else-return": 1,
    "no-eq-null": 1,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-extra-bind": 1,
    "no-floating-decimal": 1,
    "no-implicit-coercion": 1,
    "no-implied-eval": 1,
    "no-invalid-this": 0,
    "babel/no-invalid-this": 1,
    "no-iterator": 2,
    "no-labels": 1,
    "no-lone-blocks": 1,
    "no-loop-func": 1,
    "no-magic-numbers": 0,
    "no-multi-spaces": 1,
    "no-multi-str": 1,
    "no-new-func": 1,
    "no-new-wrappers": 1,
    "no-new": 1,
    "no-octal-escape": 2,
    "no-param-reassign": 1,
    "no-proto": 1,
    "no-return-assign": 0,
    "no-script-url": 1,
    "no-self-compare": 1,
    "no-sequences": 1,
    "no-throw-literal": 1,
    "no-unused-expressions": 1,
    "no-unused-vars": 0,
    "no-useless-call": 1,
    "no-useless-concat": 1,
    "no-void": 1,
    "no-warning-comments": 0,
    "no-with": 1,
    "radix": 0,
    "vars-on-top": 0,
    "wrap-iife": 1,
    "yoda": 1,
    # Variables
    "init-declarations": 1,
    "no-catch-shadow": 1,
    "no-label-var": 1,
    "no-shadow-restricted-names": 1,
    "no-shadow": 1,
    "no-undef-init": 1,
    "no-undefined": 1,
    "no-use-before-define": 1,
    # Stylistic issues
    "array-bracket-spacing": [1, "never"],
    "block-spacing": [1, "always"],
    "brace-style": 1,
    "camelcase": 1,
    "comma-dangle": [1, "always-multiline"],
    "comma-spacing": 1,
    "comma-style": 1,
    "computed-property-spacing": 1,
    "consistent-this": 1,
    "eol-last": 1,
    "func-names": 0,
    "func-style": 0,
    "id-length": 0,
    "id-match": 1,
    "indent": [1, "tab", { "SwitchCase": 1 }],
    "jsx-quotes": 1,
    "key-spacing": 1,
    "line-comment-position": 0,
    "linebreak-style": 1,
    "lines-around-comment": 0,
    "max-depth": 1,
    "max-len": [1, { "ignoreUrls": true }],
    "max-nested-callbacks": 1,
    "max-params": [1, 4],
    "max-statements": 1,
    "multiline-ternary": 0,
    "new-cap": 1,
    "new-parens": 1,
    "newline-after-var": 1,
    "newline-before-return": 1,
    "no-array-constructor": 1,
    "no-bitwise": 1,
    "no-continue": 0,
    "no-inline-comments": 0,
    "no-lonely-if": 1,
    "no-multiple-empty-lines": 1,
    "no-negated-condition": 1,
    "no-nested-ternary": 1,
    "no-new-object": 1,
    "no-plusplus": 0,
    "no-restricted-syntax": 1,
    "no-ternary": 0,
    "no-trailing-spaces": 1,
    "no-underscore-dangle": 1,
    "no-unreachable": 1,
    "no-unneeded-ternary": 1,
    "object-curly-spacing": [1, "always"],
    "object-property-newline": 0,
    "one-var-declaration-per-line": 0,
    "one-var": 0,
    "operator-assignment": 1,
    "operator-linebreak": [1, "after",
      {
        "overrides": {
          "?": "before",
          ":": "before"
        }
      }],
    "padded-blocks": [1, "never"],
    "quote-props": [1, "as-needed"],
    "quotes": [1, "single", { "avoidEscape": true }],
    "require-jsdoc": 0,
    "semi-spacing": 1,
    "semi": 1,
    "sort-keys": 0,
    "sort-vars": 0,
    "space-before-blocks": 1,
    "space-before-function-paren": [1, "never"],
    "space-in-parens": 1,
    "space-infix-ops": 1,
    "space-unary-ops": 1,
    "spaced-comment": 1,
    "wrap-regex": 0,
    # Other
    "no-console": 0,
    "strict": 0,
    "react/jsx-no-undef": 1,
    "react/jsx-uses-react": 1,
    "react/jsx-uses-vars": 1
  }
}