recursive Promise-loop https://gist.github.com/victorquinn/8030190#gistcomment-973746

javascript_promises_while.js

(function loop(sum, stop) {
    if (sum < stop) {
        return Promise.delay(250).then(() => {
            sum++;
            console.log(sum);
            return loop(sum, stop);
        });
    }
})(0, 10).then(() => console.log('Done'))

(function loop(sum, stop) {
    if (sum < stop) {
        return Promise.delay(250).then(function() {
            sum++;
            console.log(sum);
            return loop(sum, stop);
        });
    }
})(0, 10).then(function(){
  console.log('Done');
})