.eslintrc.js

// http://eslint.org/docs/user-guide/configuring

module.exports = {
    root: true,
    parser: 'babel-eslint',
    parserOptions: {
        sourceType: 'module'
    },
    env: {
        browser: true
    },
    // https://github.com/feross/standard/blob/master/RULES.md#javascript-standard-style
    extends: [
        'standard'
    ],
    plugins: [],
    // add your custom rules here
    rules: {
        'indent': ['error', 4, {'SwitchCase': 1}],
        'space-before-function-paren': ['error', {
            'anonymous': 'always',
            'named': 'never',
            'asyncArrow': 'ignore'
        }],
        'eqeqeq': 'off',
        'semi': ['error', 'always'],
        // allow paren-less arrow functions
        'arrow-parens': 0,
        // allow async-await
        'generator-star-spacing': 0,
        // allow debugger during development
        'no-debugger': process.env.NODE_ENV === 'production' ? 2 : 0,
        'standard/no-callback-literal': 0 // Ensures that we strictly follow the callback pattern with undefined, null or an error object in the first position of a callback(disabled)
    }
};