I'll start this question from notion that I've seen a similar question on StackOverflow, but that question had only answer for the difference.

What I'm asking is what should I use depending on situation and what drawbacks one or another method may have.

I know that detectChanges runs immediate change detection cycle on an element and its children, meanwhile markForCheck only marks current element and its ancestors as dirty and that they should be checked on the next change detection cycle.

I'm asking this mostly because I don't feel like I should always use markForCheck in async calls.

For example I have an InputComponent which is a wrapper for a regular HTML input. This InputComponent has ChangeDetectionStrategy.OnPush enabled.

When I make an asynchronous call to the server and get the data I need to run the change detection on that InputComponent to update a list of options and I have two options for that.

First (what I feel I should be using) is detectChanges because it would apply checks only for this exact component, whilst markForCheck would cause the whole tree branch to be checked.

So what should I use and do I need to use markForCheck ever and why?