arrays/objects in javascript

[sarahA]

So, I want to set up an associative array (although I've read I should use Object rather than Array for this), and then access the value that matches the key I have. In PHP I would use

Code:

$options = array();
$option['A'] = "available";
$option['U'] = "unavailable";
etc...

$key = "U";
$class = $option[$key] // sets class to 'unavailable'

At present I've got in JS

Code:

var options = new Object();
options['A'] = 'available';
options['U'] = 'unavailable';
etc.

var key = "U";
var class = ?

How do I set the class to equal options['U']? I've looked through various posts and help on the subject and am starting to get lost with various functions etc. I have jQuery in use too if that's easier.

And whilst we're on the subject, is it possible get the key if you know the value?

tyvm

[sarahA]

So I've found this on the jQuery site

Code:

var options = {
   A: "available",
   U: "unavailable"
 }
 var key = "U";
 var class = options[key];
 $('#test').text(class);

(modified from the array notation - http://api.jquery.com/Types/#Object)

Yet it doesn't set the div with id test to contain the text. Not sure why not   Really feel like I'm having a blonde day today (then again, am very sleep deprived so apologies if the answer is obvious)

[sarahA]

d'oh, okay so 'class' is a reserved word. It just came to me