Is there a way to verify that all results have been successfully pushed to nodesToExpand after running the for loop?
The getFilterResult function is being called via an HTTP request in the nodeService service.
for(var step in paths)
{
this.nodeService.getFilterResult(paths[step]).subscribe(
(node) =>
{
nodesToExpand.push(node);
}
);
}
It seems like the way you are currently approaching this is not quite right. I recommend avoiding mixing RxJS with for loops. Typically, RxJS has its own features to meet your requirements, so check out for more information.
If you need to wait for multiple streams to emit an event before proceeding, consider using combineLatest(). This operator not only indicates when all HTTP requests have completed, but also provides the data in a tuple format for easy handling.
const httpCalls:Array<Observable<any>> = paths.map(step => this.nodeService.getFilterResult(step));
combineLatest(HttpCalls)
.subscribe(results => console.log(results));
// --> [Call1Result, Call2Result, ...]
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