.eslintrc

/* Credits: Mobify https://github.com/mobify/mobify-code-style/blob/master/javascript/.eslintrc */
{
    "extends": "./.eslintrc-reset",
    "ecmaFeatures": {
        "blockBindings": true,
    },
    "env": {
        "node": true,
        "browser": true,
        "amd": true,
        "mocha": true,
        "jquery": true
    },
    "globals": {
        "Mobify": true,
        "Zepto": true,
        "Adaptive": true
    },
    "rules": {
        // K&R brace style, e.g. `if (x) {` <-- no new line before {
        "brace-style": [
            2,
            "1tbs",
            {
                "allowSingleLine": true
            }
        ],
        // Enforce === instead of ==; !== instead of !=
        "eqeqeq": 2,
        // Enforce if statement within 'for in'
        "guard-for-in": 2,
        // Disallow overwriting native types like 'Array' or 'Date'
        "no-extend-native": 2,
        // Enforce wrapping immediate invocations in parentheses
        "wrap-iife": [
            2,
            "inside"
        ],
        // Disallow usage of a variable before declaration; ignores functions
        "no-use-before-define": [
            2,
            "nofunc"
        ],
        // Enforce capitalization of constructor functions
        "new-cap": 2,
        // Disallow creation of dense arrays using the Array constructor
        "no-array-constructor": 2,
        // Disallow use of the Object constructor
        "no-new-object": 2,
        // Disallow use of argument.caller and argument.callee
        "no-caller": 2,
        // Disallow empty block statements
        "no-empty": 2,
        // Disallow use of the with statement
        "no-with": 2,
        // Disallow mixed spaces and tabs for indentation
        "no-mixed-spaces-and-tabs": 2,
        // Enforce 4 spaces indentation
        "indent": [
            2,
            4,
            {
                "SwitchCase": 1
            }
        ],
        // Disallow use of multiline strings
        "no-multi-str": 2,
        // Warn if variables are not named with camelCase
        "camelcase": 1,
        // Disallow trailing whitespace at the end of lines
        "no-trailing-spaces": 2,
        // Disallow spacing before commas; enforce spacing after commas
        "comma-spacing": [
            2,
            {
                "before": false,
                "after": true
            }
        ],
        // Enforce spacing after keywords: if, else, for, while, do, switch, try,
        // catch, and finally
        "space-after-keywords": 2,
        // Enforce spacing before opening brace of block statements
        "space-before-blocks": [
            2,
            "always"
        ],
        // Disallow spaces before function parentheses
        "space-before-function-paren": [
            2,
            "never"
        ],
        // Enforce spaceing around infix operators: +, -, :, ?
        "space-infix-ops": 2,
        // Enforce spacing around word unary operators: new, delete, typeof, void
        // Disallow spacing around non-word unary operators: -, +, --, ++, !, !!
        "space-unary-ops": [
            2,
            {
                "words": true,
                "nonwords": false
            }
        ],
        // Warn if undeclared variables
        "no-undef": 1,
        // Warn if single newline at end of file is missing
        "eol-last": 1,
        // Enforce single quotes for string literals
        "quotes": [
            2,
            "single"
        ],
        // Disallow unnecessary semicolons
        "no-extra-semi": 2,
        // Disallow function or variable declarations in nested blocks
        "no-inner-declarations": 2,
        // Disallows the nesting of blocks more than 5 deep
        "max-depth": [
            2,
            5
        ],
        // Enforces a maximum of 100 characters in a single line; adjusts tabs
        // to equal 4 characters
        "max-len": [
            2,
            300,
            4
        ],
        // Enforces semicolons at the end of statements
        "semi": 2,
        // Disallow function definitions of the form 'function myFunc() {'
        "func-style": [
            2,
            "expression"
        ]
    }
}