.eslintrc

{
    "parserOptions": {
        "ecmaVersion": 7,
        "sourceType": "module"
    },
    "env": {
        "browser": true,
        "es6": true
    },
    "rules": {
        "comma-spacing": [2, { "before": false, "after": true }],
        "eqeqeq": 2,
        "handle-callback-err": 2,
        "indent": ["error", 2, {
            "SwitchCase": 1,
            "VariableDeclarator": { "var": 2, "let": 2, "const": 3 },
            "FunctionDeclaration": { "parameters": "first" },
            "CallExpression": { "arguments":  "first" }
        }],
        "keyword-spacing": 2,
        "max-len": [2, { "code": 99 }],
        "no-eq-null": 2,
        "no-eval": 2,
        "no-tabs": 2,
        "no-var": 2,
        "semi": 2,
        "space-before-blocks": 2,
        "space-before-function-paren": [2, {"anonymous": "always", "named": "never"}]
    },
    "extends": [
        "eslint:recommended"
    ]
}