107

Is there a way to make some JS code be executed every 60 seconds? I'm thinking it might be possible with a while loop, but is there a neater solution? JQuery welcome, as always.

Bluefire
  • 13,519
  • 24
  • 74
  • 118
  • http://stackoverflow.com/questions/316278/timeout-jquery-effects – maialithar Nov 09 '12 at 08:22
  • setInterval(expression, timeout); runs the code/function in intervals, with the length of the timeout between them. – Jai Nov 09 '12 at 08:24
  • Possible duplicate of [Calling a function every 60 seconds](https://stackoverflow.com/questions/3138756/calling-a-function-every-60-seconds) – Heretic Monkey Jan 22 '18 at 22:28

3 Answers3

184

Using setInterval:

setInterval(function() {
    // your code goes here...
}, 60 * 1000); // 60 * 1000 milsec

The function returns an id you can clear your interval with clearInterval:

var timerID = setInterval(function() {
    // your code goes here...
}, 60 * 1000); 

clearInterval(timerID); // The setInterval it cleared and doesn't run anymore.

A "sister" function is setTimeout/clearTimeout look them up.

If you want to run a function on page init and then 60 seconds after, 120 sec after, ...:

function fn60sec() {
    // runs every 60 sec and runs on init.
}
fn60sec();
setInterval(fn60sec, 60*1000);
Michal
  • 459
  • 2
  • 7
  • 25
Andreas Louv
  • 46,145
  • 13
  • 104
  • 123
  • 5
    +1 for `60 * 1000`, but it's also a good idea to define the function outside rather than passing an anonymous function. – Adi Nov 09 '12 at 08:24
  • 1
    Question, though: if I put that, will the code be executed on the loading of the page, or will it happen 60 seconds after the loading? – Bluefire Nov 09 '12 at 08:28
  • 2
    @Bluefire it runs 60 seconds after init – Andreas Louv Nov 09 '12 at 08:30
16

You could use setInterval for this.

<script type="text/javascript">
function myFunction () {
    console.log('Executed!');
}

var interval = setInterval(function () { myFunction(); }, 60000);
</script>

Disable the timer by setting clearInterval(interval).

See this Fiddle: http://jsfiddle.net/p6NJt/2/

Knelis
  • 6,782
  • 2
  • 34
  • 54
4

to call a function on exactly the start of every minute

let date = new Date();
let sec = date.getSeconds();
setTimeout(()=>{
  setInterval(()=>{
    // do something
  }, 60 * 1000);
}, (60 - sec) * 1000);
Weilory
  • 2,621
  • 19
  • 35
  • 2
    If it's important to continue executing at the start of every minute for any moderate length of time, it's worth noting that JS's `setInterval` is not very reliable at exact time keeping, and this will likely drift further away from the start of the minute the longer it runs. – DBS Feb 07 '22 at 13:38