Javascript：window.setTimeout（）不起作用

Question

I feel like this must be very simple, but for some reason I am getting no results from this:

<script>
function sendAlert() {
    alert('hello world');
}
var timer = window.setTimeout(sendAlert, 2000);
</script>

Should this not be counting 2000ms and then calling sendAlert() ? Have I understood this wrong? I have also tried this outside of a variable (ie. window.setTimeout() not declared as var timer ) and had no result either. This seems so easy, what am I doing wrong!?

---

UPDATE:

I'm an idiot. I had script tags with bad links to javascript documents in the header of my doc, breaking javascript in general on the page. Thanks internet. ;p

Answer 1

OP just updated his post:

I'm an idiot. I had script tags with bad links to javascript documents in the header of my doc, breaking javascript in general on the page. Thanks internet. ;p

Well, that explains it. Always check your error console! :)

Answer 2

The javascript is correct. However, the tag might give problems. Try this:

<script type="text/javascript">
function sendAlert() {
    alert('hello world');
}
var timer = window.setTimeout(sendAlert, 2000);
</script>