javascript keypress function

Question

i thought i had solved this but my basic example seems to not be working. not sure why but i am sure it is a small issue. any help is appreciated.

<html>
<head>
</head>

<body>
<textarea rows="20" cols="61" id="entry" name="entry" class="body_text" wrap="physical">
</textarea>
</body>
</html>
<script>
function keypress(e){
var key_s = (window.event) ? event.keyCode : e.keyCode;
document.getElementById("entry").innerHTML=key_s;
}
</script>

That's not how you format HTML for Stackoverflow. All you have to do is indent it all by 4 or more spaces. — Pointy
– Pointy, Commented Aug 24, 2010 at 12:29
was unaware of this feature. thank you for pointing it out, definitely will do so going forward. — jason m
– jason m, Commented Aug 24, 2010 at 15:07
I actually like this formatting. This definitely doesn't deserve a downvote. +1 to even it out — Pekka
– Pekka, Commented Aug 31, 2010 at 19:51

Lekensteyn · Accepted Answer · 2010-08-24 12:31:13Z

1

You should add the keypress event listener to the browser. That can be done in several ways:

rename keypress to onkeypress (-> window.onkeypress)
use addEventListener or attachEvent (IE specific):

if(window.addEventListener) window.addEventListener('keypress', keypress, false); else if(window.attachEvent) window.attachEvent('onkeypress', keypress); else window.onkeypress = keypress;

What's happening? First, check if the standard way to handle events is available. If so, use it. Otherwise, use Internet Explorers method. If you're really using an old browser, use a legacy method.

You should also use 'value' instead of 'innerHTML' on textarea's.

answered Aug 24, 2010 at 12:31

Lekensteyn

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