Javascript experts? - GoFuckYourself.com

Jakez · 04-24-2010, 02:13 AM

How the hell would I pass an associative array to a javascript function?

Shitty example:

<a onclick="test(arr['item']='Item Name', arr['price']='4.95');">click</a>

function test(arr)
{
alert(arr['item'] + arr['price']);
}

redwhiteandblue · 04-24-2010, 04:10 AM

I don't know of a syntax that will let you do it that way, maybe just pass it in as a string of key and value pairs and have your function build the array from them.

seeandsee · 04-24-2010, 04:21 AM

bump for J-S mags

nation-x · 04-24-2010, 04:51 AM

Quote:

Originally Posted by Jakez

How the hell would I pass an associative array to a javascript function?

Shitty example:

<a onclick="test(arr['item']='Item Name', arr['price']='4.95');">click</a>

function test(arr)
{
alert(arr['item'] + arr['price']);
}

why not do it like this instead

http://nation-x.com/test.html

Code:

<script type="text/javascript">
var arr = new Object();

function testIt() {
	for (var i in arr) {
		alert('arr[\''+i+'\'] is ' + arr[i])
	}
}
</script>

If you click <a href="#" onClick="arr.item='Item Name'; arr.price='4.95';testIt(); return false;">this link</a> this script is executed:</p>

Jakez · 04-24-2010, 06:29 AM

Quote:

Originally Posted by nation-x

why not do it like this instead

http://nation-x.com/test.html

Code:

<script type="text/javascript">
var arr = new Object();

function testIt() {
	for (var i in arr) {
		alert('arr[\''+i+'\'] is ' + arr[i])
	}
}
</script>

If you click <a href="#" onClick="arr.item='Item Name'; arr.price='4.95';testIt(); return false;">this link</a> this script is executed:</p>

You're the man now dog! Thanks!

Jakez · 04-24-2010, 09:43 AM

Fuck, if I run this more than once on a page then old arguments are still passed through, unless I re-define them, then it's all good, but if I'm not using one of them on the 2nd time it will still be there from the first one. I tried clearing everything each time the function is run but it still persists. Maybe I need to clear the object each time or something? Haven't tried that yet I gotta run somewhere real quick..

dozey · 04-24-2010, 11:28 AM

Code:

<a onclick="test({name:'Item Name', price:4.95});">click</a>

function test(item)
{
    alert(item.name + ': $' + item.price.toFixed(2));
}

Jakez · 04-25-2010, 12:40 AM

Quote:

Originally Posted by dozey

Code:

<a onclick="test({name:'Item Name', price:4.95});">click</a>

function test(item)
{
    alert(item.name + ': $' + item.price.toFixed(2));
}

ooo that is neat, takes care of the persistent vars problem too, thanks dudes. The help here is better than any programming forum would do

04-24-2010, 02:13 AM	#1
Jakez Confirmed User Industry Role: Join Date: Jan 2004 Location: oddfuturewolfgangkillthemall!!!!!!! Posts: 5,656	Javascript experts? How the hell would I pass an associative array to a javascript function? Shitty example: <a onclick="test(arr['item']='Item Name', arr['price']='4.95');">click</a> function test(arr) { alert(arr['item'] + arr['price']); } __________________ [email protected] - jakezdumb - 573689400 Killuminati Last edited by Jakez; 04-24-2010 at 02:16 AM..

04-24-2010, 04:10 AM	#2
redwhiteandblue Bollocks Industry Role: Join Date: Jun 2007 Location: Bollocks Posts: 2,793	I don't know of a syntax that will let you do it that way, maybe just pass it in as a string of key and value pairs and have your function build the array from them. __________________ Interserver unmanaged AMD Ryzen servers from $73.00

04-24-2010, 04:21 AM	#3
seeandsee Check SIG! Industry Role: Join Date: Mar 2006 Location: Europe (Skype: gojkoas) Posts: 50,945	bump for J-S mags __________________ BUY MY SIG - 50$/Year Contact here

04-24-2010, 09:43 AM	#6
Jakez Confirmed User Industry Role: Join Date: Jan 2004 Location: oddfuturewolfgangkillthemall!!!!!!! Posts: 5,656	Fuck, if I run this more than once on a page then old arguments are still passed through, unless I re-define them, then it's all good, but if I'm not using one of them on the 2nd time it will still be there from the first one. I tried clearing everything each time the function is run but it still persists. Maybe I need to clear the object each time or something? Haven't tried that yet I gotta run somewhere real quick.. __________________ [email protected] - jakezdumb - 573689400 Killuminati

04-24-2010, 11:28 AM	#7
dozey Confirmed User Join Date: Nov 2004 Location: Moonland Posts: 552	Code: <a onclick="test({name:'Item Name', price:4.95});">click</a> function test(item) { alert(item.name + ': $' + item.price.toFixed(2)); }