How to run a JavaScript function after x seconds

Question

I am trying a JavaScript function after 10 second of body load. But it is showing immediatly after body load. I am not expert in JavaScript, so I am not able to find where is the problem. my code is below:

<script type="text/javascript">
window.onload=setInterval(div_show(), 10);
</script>

Answer 1

<script>
    window.onload = function(){
        //time is set in milliseconds
        setTimeout(div_show, 10000)
    };
</script>

Answer 2

You need to:

1. Assign a function to onload. setInterval returns an interval id, not a function
2. Pass a function to setInterval, div_show() will call the div_show function and pass its return value
3. Multiple your number of seconds by 1000. setInterval's second argument is accepts a number of milliseconds not seconds.

Such:

onload = function () {
    setInterval(div_show, 10 * 1000);
}

Finally, if you want to run the function 10 seconds after the document loads, rather than every 10 seconds starting from when the document loads, use setTimeout instead of setInterval.