Propitious Operators in RxSwift

Debounce

It emits an item after certain interval. We can use this majorly for searching an item in a TextField. Say for an example, I am typing fast in the textbox to get the address from Google Places API. For each letter, it will keep hitting. To avoid this, we can set an interval of some time to make a call.Here below the example.

CombineLatest : It will give the recent value emitted by all the source observables.Basically it will be very useful for validating forms.

In the below example,there are 3 primary inputs (firstname, lastname and employee). Button will get enabled, once all the inputs are valid.

Zip: Something similar to combinelatest. It will hit all the source observable sequentially, Clubbing data values from sources to be processed together .It is very useful, when we are invoking multiple API calls.

In the above example, both the calls will happen sequentially, If you want to do it concurrently then u can try with

Connectable Observable:

A connectable Observable resembles an ordinary Observable except that it does not begin emitting items when it is subscribed to. It only emits items when the Connect operator is applied to it.

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