What is debounce in Javascript? How does it work?

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 What is debounce feature?


The debounce() function makes a function wait a set period of time before resuming its execution. The function is designed to limit how many times a function can be called. The function Send Request() is debounced.


In other words, a rate limiter is a debounce function. It lets you call a function as many times as you like while knowing that it will only fire once a certain amount of time has passed. You utilize them when you're waiting for an event that may occur multiple times but only cares about the outcome.

A classic example is window resizing. Hundreds of window resize events are fired as the user drags a window, but you may not care and only want your resizing code to run once the user has finished (or halted) dragging. If you're writing a live development server, there is another option. You want to restart your server every time a user saves a file, but if they save a lot of files in a short period of time, you can use a debouncer to delay the restart for a while.



Technically, it's a function that accepts a function as a parameter, wraps it in a closure, and returns it, resulting in the above-mentioned "wait for a bit" behaviour.


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