setInterval vs setTimeout

Question

What is the main difference between   setInterval  and   setTimeout  in JavaScript

User · Answer

setInterval    setInterval is a time interval based code execution method that has the native ability to repeatedly run specified script when the interval is reached  It should not be nested into its callback function by the script author to make it loop  since it loops by default  It will keep firing at the interval unless you call clearInterval     if you want to loop code for animations or clocks Then use setInterval   function doStuff     alert  run your code here when time interval is reached      var myTimer   setInterval doStuff  5000     setTimeout    setTimeout is a time based code execution method that will execute script only one time when the interval is reached  and not repeat again unless you gear it to loop the script by nesting the setTimeout object inside of the function it calls to run  If geared to loop  it will keep firing at the interval unless you call clearTimeout     function doStuff     alert  run your code here when time interval is reached      var myTimer   setTimeout doStuff  5000     if you want something to happen one time after some seconds  Then use setTimeout    because it only executes one time when the interval is reached

User · Answer

setTimeout     It is a function that execute a JavaScript statement AFTER x interval   setTimeout function          something       1000      Execute something   1 second later    setInterval     It is a function that execute a JavaScript statement EVERY x interval   setInterval function          somethingElse       2000      Execute somethingElse   every 2 seconds    The interval unit is in millisecond for both functions

User · Answer

setTimeout expression  timeout   runs the code function once after the timeout   setInterval expression  timeout   runs the code function in intervals  with the length of the timeout between them   Example   var intervalID   setInterval alert  1000      Will alert every second     clearInterval intervalID      Will clear the timer   setTimeout alert  1000      Will alert once  after a second

User · Answer

setInterval repeats the call  setTimeout only runs it once

User · Answer

setInterval fires again and again in intervals  while setTimeout only fires once   See reference at MDN

[javascript] 'setInterval' vs 'setTimeout'

`setInterval()`

`setTimeout()`

Examples related to javascript