$q promise with Underscore _each

Question

So I have a method in a angularjs server that is calling a method that returns a promise for each method in a array. I am using underscore _each to loop through the array. I

Answer 1

You want to use $q.all, which takes an array of promises. So use map instead of each, and pass the result to $q.all(), which gives you a promise that waits for all of them. You don't even need that stuff array which is manually filled, but just can use the resolution value of that new promise.

function processCoolStuff(coolStuffs) {
    return $q.all(_.map(coolStuffs, makeStuffCooler));
}
processCoolStuff(…).then(showAllMyCoolStuff);