synchronous

I have a service to for API call as following, getValue: function(input) { var deferred, url; deferred = $q.defer(); url = "url"; $http.post(url, input).success(function(data, status, headers, config) { return deferred.resolve({ success: true, data: data, status: status, headers: headers, config: config }); }).error(function(data, status, headers, config) { return deferred.resolve({ success: false, data: data, status: status, headers: headers, config: config }); }); return deferred.promise; } But this is async. How can I convert it to sync(I want to make it wait till I get the result)? Willem

Is there any difference in performance ( speed wise ) between a synchronous request and and asynchronous request? What all are the reasons for using an asynchronous request?? You should mostly always use an asynchronous Ajax Request, in fact I know only about one place where a synchronous Ajax Request should be used which is if you're in an Ajax Request embedding a new JavaScript file on the client and then referencing types and/or objects from that JavaScript file in the return from the original Ajax Request. Then the fetching of this new JS file should (or can sanely) be included through

How to ASP.Net Ajax - PageMethods Synchronous call and retrieval of results ? Currently i am doing following async call and working with data : function checkName(name) { PageMethods.IsAvailable(name, onSuccess); } function onSuccess(result, context, method) { //... do something with result .... } How can i do same synchronously with result ? IMHO this is not possible with ASP.NET AJAX because the generated wrappers use async calls. By the way you could use jQuery to call the PageMethod where it is a matter of setting async: false . 来源： https://stackoverflow.com/questions/1957600/asp-net-ajax

Is there a way to run a function after another functions completes? For example: doSomething(); doSomethingElse(); i only want doSomethingElse() to run after doSomething completes. is this possible? If your doSomething() function is doing something asynchronously (such as making an Ajax request) then you'll want to make doSomethingElse() the callback for that asynchronous request, rather than having it execute immediately after doSomething() returns. jitter Actually you can do what you want with jQuery (at least in some sense). It could be considered a little bit hacky but works flawless. Just

This question already has an answer here: AngularJS : Initialize service with asynchronous data 10 answers I'm working on angularJs and typescript project. I have to make synchronous http call and get some data from server before I launch my client app and load UI. I search on internet and see everybody speak about promise, huumm okay why not. So I use promise (make $http call and use $q to return promise) in my app.run(). Maybe I'm missing nothing because this is not working at all. Angular launch app.config(), then app.run(), ... But Angular does not wait app.config() finish before launch

Synchronous XMLHttpRequest is being deprecated, meaning support for it will be removed eventually, here is the message I get in Chrome: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/ . So, my question is if, and, if yes, when, major browsers (esp. Chrome) will drop support for Synchronous XMLHttpRequest? Update: Chrome's announcement on removal of synchronous XHR during microtask execution at version 54 is unrelated. I have no insider information, but here is some