Can you pass default values to a class constructor? Here, last returns undefined.

class greatFunction {

    options: {

        names:  {first: 'Joe', last: 'Bloggs'}

    }

    constructor(options) {

        console.log(options.names.first + ' ' + options.names.last);        

    }

}

Called:

new greatFunction({

    names: {

        first: 'Paul'

    }

});