DaniWeb IT Discussion Community - $('idname') means what?

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pi415

Feb 2nd, 2008 1:08 pm

$('idname') means what?

I cannot find documentation of this anywhere. I am assuming from context that this goes a id lookup of a dom object and returns the object. Is that correct? If someone could point me to documentation of this, I would greatly appreciate it. Thanks,

DangerDev

Feb 2nd, 2008 2:03 pm

Re: $('idname') means what?

no it didnot return any dom object taking id. if u want to do that u should use getElementById('idname') method of document object.

pi415

Feb 2nd, 2008 3:00 pm

Re: $('idname') means what?

OK, I finally found the answer to my own question: Not sure what the best reference is, but here is one that lists some common functions and includes the $(), or if you want to find it via google the dollar function:

http://www.dustindiaz.com/top-ten-javascript/

~s.o.s~

Feb 3rd, 2008 1:32 am

Re: $('idname') means what?

From the Ecmascript specification:

Quote:

The dollar sign ($) and the underscore (_) are permitted anywhere in an identifier. The dollar sign is intended for use only in mechanically generated code.

The $() function is not standard javascript and is used by most libraries to stand for the most commonly used function : getElementById().

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