Can someone explain the “debounce” function in Javascript

Question

I am interested in the \"debouncing\" function in javascript, written here : http://davidwalsh.name/javascript-debounce-function

Unfortunately the code is not explai

Answer 1

Debounced functions do not execute when invoked, they wait for a pause of invocations over a configurable duration before executing; each new invocation restarts the timer.

Throttled functions execute and then wait a configurable duration before being eligible to fire again.

Debounce is great for keypress events; when the user starts typing and then pauses you submit all the key presses as a single event, thus cutting down on the handling invocations.

Throttle is great for realtime endpoints that you only want to allow the user to invoke once per a set period of time.

Check out Underscore.js for their implementations too.