.eslintrc.json

{
    "env": {
        "browser": true,
        "commonjs": true,
        "es6": true,
        "node": true,
        "mocha": true
    },
    "extends": "eslint:recommended",
    "parserOptions": {
        "sourceType": "module",
        "ecmaFeatures": {
            "impliedStrict": true
        }
    },
    "rules": {
        "indent": [ 2, "tab" ],
        "linebreak-style": [ 2, "unix" ],
        "quotes": [ 2, "single" ],
        "semi": [ 2, "always" ],
        "curly": 2,
        "brace-style": [2, "1tbs" ],
        "camelcase": [ 2, { "properties": "always" } ],
        "comma-spacing": [ 2, { "before": false, "after": true } ],
        "comma-style": [ 2, "last" ],
        "key-spacing": [ 2, { "mode": "strict", "beforeColon": false, "afterColon": true } ],
        "keyword-spacing": 2,
        "block-spacing": 2,
        "array-bracket-spacing": [ 2, "always" ],
        "object-curly-spacing": [ 2, "always" ],
        "computed-property-spacing": [ 2, "always" ],
        "space-in-parens": [ 2, "always" ],
        "space-before-function-paren": [ 2, "never" ],
        "generator-star-spacing": [ 2, "after" ],
        "yield-star-spacing": [ 2, "after" ],
        "space-infix-ops": 2,
        "space-unary-ops": 2,
        "spaced-comment": [ 2, "always" ],
        "arrow-spacing": [2, { "before": true, "after": true } ],
        "arrow-parens": [ 2, "always" ],
        "arrow-body-style": [ 2, "always" ],
        "no-trailing-spaces": 2,
        "no-multiple-empty-lines": [ 2, { "max": 1 } ],
        "eol-last": 2,
        "valid-jsdoc": 2,
        "no-implicit-coercion": [ 2, { "allow": [ "!!" ] } ],
        "no-native-reassign": 2,
        "wrap-iife": [ 2, "outside" ],
        "yoda": [ 2, "never" ],
        "prefer-arrow-callback": 2,
        "prefer-const": 2,
        "no-var": 2,
        "prefer-template": 2,
        "prefer-rest-params": 2,
        "prefer-spread": 2,
        "object-shorthand": [ 2, "always" ],
        "no-array-constructor": 2,
        "no-new-object": 2,
        "new-cap": 2,
        "new-parens": 2,
        "no-lonely-if": 2,
        "no-use-before-define": 2,
        "no-with": 2,
        "eqeqeq": [ 2, "smart" ]
    }
}