12. Create Action Stream using BehaviorSubject & filter posts with selected Category - Angular RxJS

In this video, we will learn how to create the action stream for filtering the posts with the user-selected category using combineLatest operator in Angular RxJS.

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[amarnathr]

THIS COURSE IS UNIQUE SIR I REALLY THANKFUL TO U

[artsypixels]

Thanks for the great tutorial, I have a question what if I have multiple drop-downs in which user can use one of more, how you will control filtering the data with more than one criteria?

[bhupeshparab]

Can you elaborate this example with fromeEvent operator?

[romarioputra]

when is the selectedCategoryAction is subscribed?

Edit: combineLatest combines the values from all the Observables passed in the observables array. This is done by subscribing to each Observable in order and, whenever any Observable emits, collecting an array of the most recent values from each Observable. So if you pass n Observables to this operator, the returned Observable will always emit an array of n values, in an order corresponding to the order of the passed Observables (the value from the first Observable will be at index 0 of the array and so on).