.eslintrc.js

module.exports = {
    root: true,

    parserOptions: {
        parser: 'babel-eslint',
        ecmaVersion: 2018,
        sourceType: 'module'
    },
    plugins: ['html'],
    env: {
        browser: true
    },

    rules: {
        indent: ['error', 2, { SwitchCase: 1 }],
        'space-infix-ops': ['error', { int32Hint: false }],
        'key-spacing': [
            2,
            {
                beforeColon: false,
                afterColon: true
            }
        ],
        'no-octal': 2,
        'no-redeclare': 2,
        'comma-spacing': 2,
        'no-new-object': 2,
        'arrow-spacing': 2,
        quotes: [
            2,
            'single',
            {
                avoidEscape: true,
                allowTemplateLiterals: true
            }
        ]
    }
}