On 10/1/06, Jörn Zaefferer <
[EMAIL PROTECTED]> wrote:
Hi folks,
the thread about showing and hiding DDs when clicking DTs gave me an
idea for a chainable if/else construct. I have implemented and tested it
and now I'd like to know if this is useful enough to be released as a
plugin or even adding to the core.
Basically I extended the current is(String _expression_) method. It now
accepts one or two functions. If one is given, it will be executed for
every element that fits the _expression_. If the second function is given,
it will be executed for every element that does not fit the _expression_.
Applied to the click dt to show/hide dd example:
$(document).ready(function() {
$('#faq').find('dd').hide().end().find('dt').click(function() {
$(this).next().is(':visible',
function() { $(this).slideUp(); },
function() { $(this).slideDown(); }
);
});
});
The extended is method looks like this:
is: function(expr, ifCallback, elseCallback) {
if(ifCallback) {
var elseCalllback = elseCallback || function() {};
return this.each(function() {
if($(this).is(expr)) {
ifCallback.apply(this);
} else {
elseCallback.apply(this);
}
});
}
return expr ? jQuery.filter(expr,this).r.length > 0 : false;
},
The strength of this addition: is() returns the jQuery object, therefore
it does not break the chain. Your opinions?
-- Jörn
_______________________________________________
jQuery mailing list
[email protected]
http://jquery.com/discuss/
_______________________________________________ jQuery mailing list [email protected] http://jquery.com/discuss/
