.eslintrc

{
  "env": {
    "browser": 1, //browser global variables.
    "jquery": 1, //jquery global variables.
    "amd": 1 //RequireJS
  },
  "globals": { //Specifying other globals that are exposed in the current project
    "chrome": 1
  },
  "parserOptions": {
    "ecmaVersion": 8,
    "sourceType": "script",
    "ecmaFeatures": {
      "impliedStrict": false
    }
  },
  "rules": {
    "strict": [2, "global"], //controls location of Use Strict Directives
    "valid-jsdoc": [1, {
      "requireReturn": false,
      "requireReturnDescription": false
    }],
    "one-var": [1, "never"], //allow or disallow one variable declaration per function
    "eqeqeq": 1, //require the use of === and !==
    "quotes": [1, "single"], //specify whether backticks, double or single quotes should be used
    "no-script-url": 1, //disallow use of javascript: urls.
    "curly": 1, //specify curly brace conventions for all control statements
    "latedef": 0,
    "no-unused-vars": 1, //disallow declaration of variables that are not used in the code
    "guard-for-in": 1, //make sure for-in loops have an if statement
    "no-mixed-spaces-and-tabs": [2,"smart-tabs"], //disallow mixed spaces and tabs for indentation
    "key-spacing": 0, //enforces spacing between keys and values in object literal properties (disabled)
    "no-multi-spaces": 0, // disallow use of multiple spaces (disabled)
    "no-trailing-spaces": 0
  }
}