What does this code actually do?

[cocaine]

<script>
alert();
</script>

my fren said "try this" and locked the topic in another forum. I just cant get where to use it and what kind of script is this?

 

[J4m!3]

Looks like un-finished javascript for a pop-up.

Looks like un-finished javascript for a pop-up.

EDIT: It is, this is finished
<script type="text/javascript">
function disp_alert()
{
alert("I am an alert box!!")
}
</script>

 

[webox]

No need for a function, just fill in the brackets :D

<script type="text/javascript">
alert("This is one of those annoying boxes!");
</script>

 

[cocaine]

then what it does?

 

[luxinterior]

It just pops up a message box with whatever text you have in it. Here's a novel idea...why not just give it a try and answer your own question. :D

Lux

 

[cx409]

If you want to instantly try it out, just type this into your address bar:

javascript:alert("Hi! I'm an alert box, just what you told me to do!");

You'll know exactly what everyone's talking about...