Javascript Timer

Code Snippets Timer


In this code snippet, we’ll learn how to use timers in Javascript.

Timers can be used to execute code at certain intervals. When we make a timer we need to specify the function that will be called on each tick and the interval length in milliseconds. We’ll also take a look at delays which opposed to timers only run once.

Let’s see the code example below.



function timerCallback(){
	console.log("I'm spamming the console every 5s.");

//The timerCallback() function will be called every 5000ms or 5s.
const timer = window.setInterval(timerCallback, 5000);

//The timer can be stopped like so:



function delayCallback(){
	console.log("I was delayed for 2s.");

//The delayCallback() function will be called(only once) after 5000ms or 5s.
const delay = window.setTimeout(delayCallback, 2000);

//The delay can be stopped like so:


Resulting output:


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