debounce: User interface concept that stops a function from getting called too regularly. It waits until completion of a user action to run the function.

Which could serve some purpose quite often but most of the time we want to take action AFTER the action is finished.
This inhibits your UI code from needing to process every event and also drastically reduces the quantity of API calls delivered to your server.
Processing every persona as it’s entered could harm performance and add unnecessary load to your backend.
A Debounce function is a higher-order purpose that returns another performance, to create closure around the function parameters and the timer variable.
Since we can’t just simply tell our feature to stick around until calls end, we’ll use setTimeout to obtain around this.
Whenever the function is called, we’ll schedule a contact to the original work if t elapses without the more calls.
If another call happens before t elapses, we’ll cancel the formerly scheduled phone and reschedule.

• The begin/cancelation of rAFs it’s our accountability, unlike .debounce or even .throttle, where it’s managed internally.