eslint for react js

.eslintrc

{
  "extends": [
    "plugin:react/recommended",
    "plugin:jest/recommended"
  ],
  "parser": "babel-eslint",
  "env": {
    "browser": true,
    "commonjs": true,
    "node": true,
    "es6": true
  },
  "parserOptions": {
    "ecmaVersion": 6
  },
  "plugins": [
    "prettier",
  ],
  "globals": {
    "fetch": false,
    "window": false,
    "document": false
  },
   "settings": {
    "import/core-modules": [ // for your webpack alias import
      "kao-config",
      "kao-util",
      "kao-server",
      "kao-store",
      "kao-redux",
      "kao-redux/yax",
      "kao-components",
      "kao-client",
      "kao-containers",
      "kao-assets",
      "kao-styles"
    ]
  },
  "rules": {
    "global-require": "off",
    "react/jsx-indent-props": [2, 2],
    "react/jsx-first-prop-new-line": [1, "multiline" ],
    "react/jsx-closing-tag-location": 1,
    "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }],
    "react/prefer-stateless-function": [0, { "ignorePureComponents": true}],
    "react/prop-types": 0,
    "react/self-closing-comp": 1,
    "react/wrap-multilines": 0,
    "consistent-return": 0, // require return statements to either always or never specify values
    "comma-dangle": [2, { // disallow trailing commas in object literals
        "arrays": "ignore",
        "objects": "ignore",
        "imports": "ignore",
        "exports": "ignore",
        "functions": "never"
    }],
    "prettier/prettier": [2, "fb", "@format"],
    "no-catch-shadow": 1,            // disallow the catch clause parameter name being the same as a variable in the outer scope (off by default in the node environment)
    "no-delete-var": 1,              // disallow deletion of variables
    "no-label-var": 1,               // disallow labels that share a name with a variable
    "no-shadow": 1,                  // disallow declaration of variables already declared in the outer scope
    "no-shadow-restricted-names": 1, // disallow shadowing of names such as arguments
    "no-undef": 2,                   // disallow use of undeclared variables unless mentioned in a /*global */ block
    "no-console": 1, // disallow use of console (off by default in the node environment)
    "no-undefined": 0,               // disallow use of undefined variable (off by default)
    "no-undef-init": 1,              // disallow use of undefined when initializing variables
    "no-unused-vars": [1, {"vars": "all", "args": "none"}], // disallow declaration of variables that are not used in the code
    "no-use-before-define": 0,       // disallow use of variables before they are defined
    "no-useless-return": 1,             // disallow else after a return in an if (off by default)
    "no-extra-semi": 1,              // disallow unnecessary semicolons
    // Stylistic Issues
    // These rules are purely matters of style and are quite subjective.

    "key-spacing": 0,
    "keyword-spacing": 1,            // enforce spacing before and after keywords
    "jsx-quotes": [1, "prefer-double"], // enforces the usage of double quotes for all JSX attribute values which doesn’t contain a double quote
    "comma-spacing": 0,
    "no-multi-spaces": 0,
    "brace-style": 1,                // enforce one true brace style (off by default)
    "camelcase": 0,                  // require camel case names
    "consistent-this": 1,            // enforces consistent naming when capturing the current execution context (off by default)
    "eol-last": 1,                   // enforce newline at the end of file, with no multiple empty lines
    "func-names": 0,                 // require function expressions to have a name (off by default)
    "func-style": 0,                 // enforces use of function declarations or expressions (off by default)
    "new-cap": 0,                    // require a capital letter for constructors
    "new-parens": 1,                 // disallow the omission of parentheses when invoking a constructor with no arguments
    "no-nested-ternary": 0,          // disallow nested ternary expressions (off by default)
    "no-array-constructor": 1,       // disallow use of the Array constructor
    'no-empty-character-class': 1,   // disallow the use of empty character classes in regular expressions
    "no-lonely-if": 0,               // disallow if as the only statement in an else block (off by default)
    "no-new-object": 1,              // disallow use of the Object constructor
    "no-spaced-func": 1,             // disallow space between function identifier and application
    "no-ternary": 0,                 // disallow the use of ternary operators (off by default)
    "no-trailing-spaces": 1,         // disallow trailing whitespace at the end of lines
    "no-underscore-dangle": 0,       // disallow dangling underscores in identifiers
    "no-mixed-spaces-and-tabs": 1,   // disallow mixed spaces and tabs for indentation
    "quotes": [1, "single", "avoid-escape"], // specify whether double or single quotes should be used
    "quote-props": 0,                // require quotes around object literal property names (off by default)
    "semi": 1,                       // require or disallow use of semicolons instead of ASI
    "sort-vars": 0,                  // sort variables within the same declaration block (off by default)
    "arrow-spacing": 2,
    "space-before-blocks": 2,
    "array-bracket-spacing": 2,         // require or disallow spaces inside brackets (off by default)
    "object-curly-spacing": [2, "always", { "objectsInObjects": false, "arraysInObjects": false }],
    "space-in-parens": 2,            // require or disallow spaces inside parentheses (off by default)
    "space-infix-ops": 1,            // require spaces around operators
    "space-unary-ops": [1, { "words": true, "nonwords": false }], // require or disallow spaces before/after unary operators (words on by default, nonwords off by default)
    "max-nested-callbacks": 0,       // specify the maximum depth callbacks can be nested (off by default)
    "one-var": 0,                    // allow just one var statement per function (off by default)
    "wrap-regex": 0,                 // require regex literals to be wrapped in parentheses (off by default)

    // Legacy
    // The following rules are included for compatibility with JSHint and JSLint. While the names of the rules may not match up with the JSHint/JSLint counterpart, the functionality is the same.

    "max-depth": 0,                  // specify the maximum depth that blocks can be nested (off by default)
    "max-len": 0,                    // specify the maximum length of a line in your program (off by default)
    "max-params": 0,                 // limits the number of parameters that can be used in the function declaration. (off by default)
    "max-statements": 0,             // specify the maximum number of statement allowed in a function (off by default)
    "no-bitwise": 1,                 // disallow use of bitwise operators (off by default)
    "no-plusplus": 0,                // disallow use of unary operators, ++ and -- (off by default)
  }
}