.eslintrc.json

{
    "root": true,
    "extends": [
        "eslint:recommended"
    ],
    "parserOptions": {
        "ecmaVersion": 6,
        "sourceType": "module",
        "ecmaFeatures": {
            "globalReturn": true,
            "impliedStrict": true
        }
    },
    "env": {
        "es6": true,
        "node": true
    },
    "rules": {
        "no-trailing-spaces": [2],
        "no-multiple-empty-lines": [2, {"max": 2, "maxEOF": 0}],
        "eol-last": [2],
        "indent": [0],
        "indent-legacy": [2, 4, {"SwitchCase": 1}],
        "max-len": [0, 80],
        "brace-style": [0, "stroustrup", {"allowSingleLine": true}],
        "curly": [2, "multi-line"],
        "camelcase": [0, {"properties": "never"}],
        "comma-spacing": [2, {"before": false, "after": true}],
        "comma-style": [2, "last"],
        "semi": [2],
        "semi-spacing": [2, {"before": false, "after": true}],
        "key-spacing": [2, {"beforeColon": false, "afterColon": true}],
        "keyword-spacing": [2, {"overrides": {
            "if": {"after": true},
            "for": {"after": true},
            "while": {"after": true},
            "switch": {"after": false},
            "catch": {"after": false}
        }}],
        "no-spaced-func": [2],
        "space-in-parens": [2, "never"],
        "space-before-function-paren": [2, "never"],
        "space-before-blocks": [2],
        "spaced-comment": [2, "always"],
        "no-tabs": [2],
        "no-multi-spaces": [2, {"ignoreEOLComments": true}],
        "no-whitespace-before-property": [2],
        "no-unexpected-multiline": [2],
        "no-floating-decimal": [2],
        "space-infix-ops": [2, {"int32Hint": true}],
        "quotes": [2, "single"],
        "dot-notation": [2],
        "dot-location": [2, "property"],
        "operator-linebreak": [2, "after"],
        "eqeqeq": [2],
        "new-cap": [2, { "capIsNewExceptionPattern": "^MathJax\\.." }],
        "no-redeclare": [2, {"builtinGlobals": true}],
        "no-shadow": [0, {"builtinGlobals": true}],
        "block-scoped-var": [2],
        "no-unused-vars": [2],
        "no-undef-init": [2],
        "no-use-before-define": [2, "nofunc"],
        "no-loop-func": [2],
        "no-console": [0],
        "no-unused-labels": [2],
        "no-useless-escape": [0]
    }
}