Keyword Analysis & Research: angular wait for subscribe to finish


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Frequently Asked Questions

How to make getuser wait for subscription to finish?

If you want your getUser function to wait for subscription to finish, you will have to return observable. And then use .subscribe () with this.appState.getUser ().

Does ngoninit wait for a function to complete?

However, if you're using ngOnInit instead of the constructor to wait for a function to complete, you're basically doing the equivalent of this: It will run the async function, but it WILL NOT wait for it to complete. If you notice sometimes it completes and sometimes it doesn't, it really just depends on the timing of your function.

Does ngzone wait for an async function to complete?

It will run the async function, but it WILL NOT wait for it to complete. If you notice sometimes it completes and sometimes it doesn't, it really just depends on the timing of your function. Using the ideas from this post, you can basically run outside zone.js. NgZone does not include scheduleMacroTask, but zone.js is imported already into angular.

How to execute observables in parallel in angular?

We use forkJoin to execute observables in parallel. One common use case of this is making multiple http requests in parallel. In my sample I am forkJoining two very simple observables, but the key point is that the subscriber won't receive any values until both observables have completed. This would be similar to $q.all () from Angular 1.x.


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