setimteout menggunakan generator fungsi

function showValue() {
    return setTimeout(function() {
        function* gen() {
            console.log('yielding');
            yield 100;
        };
        var it = gen();
        console.log(it.next().value);
    }, 1000);
}
showValue();             
console.log(showValue());
Restu Wahyu Saputra