But :has() and :contains() do two completely different
things. :contains() filters based on text contents while :has()
filters based on selectors. So, I think it would be a really bad idea
to try to combine them.
--Karl
On Dec 17, 2009, at 3:48 PM, Matt Maxwell wrote:
> I think .has() should return a bool, :has() should be combined
> with :contains() (the finished filter named :contains()),
> and .contains() should go away.
>
> That seems to make the most sense to me, anyways.
>
> On Thu, Dec 17, 2009 at 9:20 AM, Karl Swedberg
> <k...@englishrules.com> wrote:
> On Dec 16, 2009, at 11:14 PM, John Resig wrote:
>
>> People are use to using .has()? It was only just added - at the same
>> time as .contains() as well.
>>
>> I'll mull over the .contains() discrepancy. I may just punt it and
>> push people towards .has() anyway.
>>
>> Looking at .has() now I'm not 100% sure why it's filtering and not
>> just returning a boolean, like .is(). Hmm. If .has() returns a
>> boolean
>> then yeah, consider .contains() gone (and a jQuery.contains will be
>> provided for those that need a lightweight method).
>>
>> --John
>
>
> But if .has() returns a boolean, then we have the same problem
> with :has() vs. .has() as we had with :contains() vs. contains().
>
> Since :has() is a filter, I would expect .has() to be a filter.
>
> On Dec 17, 2009, at 12:45 AM, Rick Waldron wrote:
>> John, I tend to assume that anything prefixed with 'is' or 'has'
>> will return a boolean. I think this is likely a common assumption.
>
> I typically assume the same thing, but in this case .has() is not a
> prefix; it's the full method name. And we already have the pseudo-
> selector :has() that acts as a filter.
>
>
> --Karl
>
>> On Wed, Dec 16, 2009 at 11:04 PM, ajpiano <ajpi...@gmail.com> wrote:
>>> It seems like a matter of course that means of filtering that are
>>> exposed as both pseudoselectors and methods on the jQuery prototype
>>> return the same set of elements, or at least that they generally
>>> apply
>>> the same principle in filtering. Examples include eq, not, first,
>>> last, and has. While the :parent pseduo doesn't work the same
>>> as .parent(), most developers know what they're looking for if
>>> they're
>>> using :parent.
>>>
>>> The new $.fn.contains method, however, doesn't work like :contains.
>>> Rather than searching for the text content of
>>> elements, .contains() is
>>> just a shortcut to $(elem).has("foo").length > 0. I'm not sure why
>>> this is really a necessary shortcut, given that most people are
>>> plenty
>>> used to doing something like .has().length anyway. I tend to think,
>>> however, that .contains () should work like :contains, for
>>> consistency's sake.
>>>
>>> This would have the added benefit of allowing those people who do
>>> use :contains to write code like this:
>>>
>>> var foo = "barbazbat";
>>> $("div").contains(foo);
>>>
>>> instead of
>>> $("div:contains("+foo+")");
>>>
>>> Anyone else have any thoughts on this?
>>>
>>> --adam
>>>
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