Daniel Eben Elmore wrote:
Is there a function like getElementsByClassName where I can use regex to
match the class names? I want to match class names starting with ...
You should be able to replace the getElementsByClassName function in
Prototype with the following (barely tested):
document.getElementsByClassName = function (pattern, parentEl ){
if (typeof pattern == 'string') {
pattern = new RegExp('(^|\\s)' + pattern + '(\\s|$)');
}
var el, els = ($(parentEl)||document.body).getElementsByTagName('*');
var elements = [];
var i = els.length;
while (i--){
el = els[i]
if (el.className && pattern.test(el.className)){
elements.push(Element.extend(el));
}
}
return elements;
}
To get all the elements with a className that starts with 'foo' use:
document.getElementsByClassName( /(^|\s)foo/ );
If you pass it a string, it will match the full className. If you give
it a regular expression, it will use that. It assumes that if pattern
isn't a string, it's a RegExp - you may want to test that first.
--
Rob
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