Jetty has had support for asynchronous request processing since version 6 (see here), using a proprietary API. More recent versions support the asynchronous API as part of the Servlet 3.0 API, like any other compliant implementation. Using Netty would seem like a lot of work for little gain, unless you have highly specific requirements. Otherwise, … Read more
In the latest version of Angular Import HttpClientModule and HttpClientJsonpModule modules in your app module’s definition file import { HttpClientModule, HttpClientJsonpModule } from ‘@angular/common/http’; @NgModule({ declarations: [ //… List of components that you need. ], imports: [ HttpClientModule, HttpClientJsonpModule, //… ], providers: [ //… ], bootstrap: [AppComponent] }) Inject http and map rxjs operator into … Read more
You do not need any special pipe. Angular 2 suppport optional field. You just need to add ? in your object {{ (data | async)?.name }} or {{(name | async)?}}
The async/await includes a few operators to help with parallel composition, such as WhenAll and WhenAny. var taskA = someCall(); // Note: no await var taskB = anotherCall(); // Note: no await // Wait for both tasks to complete. await Task.WhenAll(taskA, taskB); // Retrieve the results. var resultA = taskA.Result; var resultB = taskB.Result;
The error occurs because Jupyter notebooks has a running event loop. From documentation If you try to run any of these parts from a thread where there is a running event loop, you will get a SynchronousOnlyOperation error. Note that you don’t have to be inside an async function directly to have this error occur. … Read more
The only time that you can wrap an async method in a synchronous one is when you don’t need to get a return value. For example if you want to disable the save button, save results to the server asynchronously and re-enable the save button when the job is done you can write it like … Read more
It’s hard to say without knowing exactly what you need, but possibly zip() or combineLatest(). zip will take both Observable<Milk> and Observable<Cereals> and let you combine them into CerealsWithMilk via a provided function. This emits a new CerealsWithMilk each time you get get both a Milk and a Cereals. combineLatest is similar to zip except … Read more
Very simply, a callback needn’t be asynchronous. http://docs.apigee.com/api-baas/asynchronous-vs-synchronous-calls Synchronous: If an API call is synchronous, it means that code execution will block (or wait) for the API call to return before continuing. This means that until a response is returned by the API, your application will not execute any further, which could be perceived by … Read more
async/await is about asynchrony, whereas Parallel.ForEach is about parallelism. They’re related concepts, but not the same. Parallel.ForEach is used when you want to execute the same operation on all the items in a collection, in parallel, blocking the current thread until all operations have completed. async/await is used when the current operation can’t make any … Read more
Waiting on multiple Futures to complete using Future.wait() If the order of execution of the functions is not important, you can use Future.wait(). The functions get triggered in quick succession; when all of them complete with a value, Future.wait() returns a new Future. This Future completes with a list containing the values produced by each … Read more