.eslintrc

{
    // Parser
    "parser": "babel-eslint",
    // ECMA Features
    "ecmaFeatures": {
        "arrowFunctions": true,
        "blockBindings": true,
        "classes": true,
        "defaultParams": true,
        "destructuring": true,
        "modules": true,
        "objectLiteralComputedProperties": true,
        "templateStrings": true
    },
    "rules": {
        // Possible Errors
        "no-dupe-args": 2,
        "no-dupe-keys": 2,
        "no-empty": 2,
        "no-func-assign": 2,
        "no-inner-declarations": 2,
        "no-unreachable": 2,
        "no-unexpected-multiline": 2,
        // Best practices
        "consistent-return": 0,
        "curly": [2, "multi-line"],
        "eqeqeq": 2,
        "no-else-return": 2,
        "no-multi-spaces": 0,
        // Strict mode
        "strict": 0,
        // Variables
        "no-shadow": 0,
        "no-unused-vars": 2,
        "no-use-before-define": 0,
        // Style
        "brace-style": [2, "1tbs"],
        "comma-spacing": [2, {"before": false, "after": true}],
        "comma-style": [2, "last"],
        "consistent-this":  [2, "that"],
        "lines-around-comment": [2, {"allowBlockStart": true}],
        "key-spacing": 0,
        "new-parens": 0,
        "quotes": [2, "single", "avoid-escape"],
        "no-underscore-dangle": 0,
        "no-unneeded-ternary": 2,
        "semi": 2,
        // ES6
        "no-var": 2,
        "no-this-before-super": 2,
        "object-shorthand": 2,
    },
    "env": {
        "node": true,
        "browser": true
    }
}