Wait until all promises complete even if some rejected

Question

Let\'s say I have a set of Promises that are making network requests, of which one will fail:

// http://does-not-exist will throw a TypeError
va         


        

Answer 1

I really like Benjamin's answer, and how he basically turns all promises into always-resolving-but-sometimes-with-error-as-a-result ones. :)
Here's my attempt at your request just in case you were looking for alternatives. This method simply treats errors as valid results, and is coded similar to Promise.all otherwise:

Promise.settle = function(promises) {
  var results = [];
  var done = promises.length;

  return new Promise(function(resolve) {
    function tryResolve(i, v) {
      results[i] = v;
      done = done - 1;
      if (done == 0)
        resolve(results);
    }

    for (var i=0; i