I'm pretty sure Array.splice is a native method, there is
documentation on the w3 schools site.
http://www.w3schools.com/jsref/jsref_splice.asp
--
Matt Foster
Ajax Engineer
Nth Penguin, LLC
http://www.nthpenguin.com
On May 5, 11:59 pm, "Justin Perkins" <[EMAIL PROTECTED]> wrote:
> On Mon, May 5, 2008 at 7:04 PM, kangax <[EMAIL PROTECTED]> wrote:
>
> > Justin,
> > there's no need to "wrap" array with $A. Array.prototype is already
>
> Thanks for the tip, I'm paranoid. IE has scarred me. I'll try to
> remember that. I usually initialize with this.foo = $A(), so that's
> what I was doing in my example.
>
> > I'm not sure why you would want to "compact" a result in first
>
> If you don't do that, then don't you end up with an undefined wherever
> an item was pulled out of the array? Such as in my example:
> [1,2,3,undefined,5]
>
> I'm getting mixed results in firebug and my ruby coding has trained me
> to compact my arrays.
>
> > #without is generally slow when it comes to huge arrays.
>
> Good to know.
>
> > For best performance it's obviously better to stick to native methods:
>
> > var arr = [1,2,3,4,5];
> > arr.splice(arr.indexOf(4), 1);
> > arr; // [1,2,3,5]
>
> I wasn't aware of a splice method. After explaining my problem a
> co-worker was talking about splicing and lamented that JavaScript
> probably did not support a splice method natively :p
>
> > Regarding your snippet, what about something like:
> > // it might sense to use iterator-like "proxy" for filtering
> > SomeClass.condition = function(value, index) {
> > return index % 2;
> > }
>
> > var SomeClassManager = {
> > trim: function() {
> > this.objects = this.objects.reject(SomeClass.condition);
> > }
> > }
> > SomeClassManager.trim();
> > SomeClassManager.objects.size(); // 6
>
> Thanks, I think that is what I need.
>
> What I'm doing here is creating a new instance of my class for some
> special DOM elements on a page and I want a way to determine if the
> element is still in the page, so I have a isOrphaned() method on the
> class, and when that method returns true then I call that object's
> destroy method and then rip it out of the array.
>
> I was trying to avoid cloning the enumerable, hence the original question.
>
> -justin
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