.eslintrc

{
  // http://eslint.org/docs/rules/
  "parser": "babel-eslint",

  "extends": ["prettier", "plugin:react/recommended"],

  "env": {
    "browser": true, // browser global variables.
    "node": true, // Node.js global variables and Node.js-specific rules.
    "worker": false, // web workers global variables.
    "amd": false, // defines require() and define() as global variables as per the amd spec.
    "mocha": false, // adds all of the Mocha testing global variables.
    "jasmine": false, // adds all of the Jasmine testing global variables for version 1.3 and 2.0.
    "phantomjs": false, // phantomjs global variables.
    "jquery": false, // jquery global variables.
    "prototypejs": false, // prototypejs global variables.
    "shelljs": false, // shelljs global variables.
    "meteor": false, // meteor global variables.
    "mongo": false, // mongo global variables.
    "applescript": false, // applescript global variables.
    "jest/globals": true,
    "es6": true // enable all ECMAScript 6 features except for modules.
  },

  "globals": {
    "goog": true
  },

  "plugins": ["prettier", "jest", "react"],

  "rules": {
    "no-extra-semi": 1, // disallow unnecessary semicolons
    "no-inner-declarations": 2, // disallow function or variable declarations in nested blocks
    "no-use-before-define": ["warn", { "functions": false, "classes": true }],

    "curly": 2, // specify curly brace conventions for all control statements
    "no-eval": 2,
    "no-extend-native": 2, // disallow adding to native types
    "no-new-wrappers": 2, // disallows creating new instances of String, Number, and Boolean
    "no-with": 2,
    "no-return-await": 2,

    "no-undef": 2, // disallow use of undeclared variables unless mentioned in a /*global */ block
    "no-var": 2,
    "no-unused-vars": 1,
    "prefer-const": ["error", {
      "destructuring": "all",
      "ignoreReadBeforeAssign": false
    }],

    "no-array-constructor": 2,
    "no-new-object": 2,

    "prettier/prettier": "error",

    "react/prop-types": 0,
    "react/no-find-dom-node": 0
  }
}