What you need to use is $q.all which combines a number of promises into one which is only resolved when all the promises are resolved. In your case you could do something like: function outerFunction() { var defer = $q.defer(); var promises = []; function lastTask(){ writeSome(‘finish’).then( function(){ defer.resolve(); }); } angular.forEach( $scope.testArray, function(value){ promises.push(writeSome(value)); … Read more
Try adding this code to your config. I had a similar issue once, and this workaround did the trick. app.config([‘$qProvider’, function ($qProvider) { $qProvider.errorOnUnhandledRejections(false); }]);
Well, I’m assuming you don’t keep an explicit reference to it since that would force it to stay allocated. The simplest test I could think of is actually allocating a lot of promises and not resolving them: var $q = angular.injector([“ng”]).get(“$q”); setInterval(function () { for (var i = 0; i < 100; i++) { var … Read more
I want the all to resolve when all the chains have been resolved. Sure, then just pass the promise of each chain into the all() instead of the initial promises: $q.all([one.promise, two.promise, three.promise]).then(function() { console.log(“ALL INITIAL PROMISES RESOLVED”); }); var onechain = one.promise.then(success).then(success), twochain = two.promise.then(success), threechain = three.promise.then(success).then(success).then(success); $q.all([onechain, twochain, threechain]).then(function() { console.log(“ALL PROMISES … Read more
This feature was added to the 1.1.5 release via a timeout parameter: var canceler = $q.defer(); $http.get(‘/someUrl’, {timeout: canceler.promise}).success(successCallback); // later… canceler.resolve(); // Aborts the $http request if it isn’t finished.
promiseA‘s then function returns a new promise (promiseB) that is immediately resolved after promiseA is resolved, its value is the value of the what is returned from the success function within promiseA. In this case promiseA is resolved with a value – result and then immediately resolves promiseB with the value of result + 1. … Read more
Have you had a look at $routeProvider.when(‘/path’,{ resolve:{…}? It can make the promise approach a bit cleaner: Expose a promise in your service: app.service(‘MyService’, function($http) { var myData = null; var promise = $http.get(‘data.json’).success(function (data) { myData = data; }); return { promise:promise, setData: function (data) { myData = data; }, doStuff: function () { … Read more
Promise A Promise handles a single event when an async operation completes or fails. Note: There are Promise libraries out there that support cancellation, but ES6 Promise doesn’t so far. Observable An Observable is like a Stream (in many languages) and allows to pass zero or more events where the callback is called for each … Read more