Hi Karl,
Thanks very much for your quick helps.
Feel very nice to hear from you. You write a very nice book. I can write
some simple codes after reading your books for only a week. I'm reading the
seventh chapter now.
Actually I'm going to release a website for our Chinese learning English
Vocabularies in a month, and I hope my scripts work well on my site.
Thanks again.
On Wed, Dec 31, 2008 at 1:17 PM, Karl Swedberg <k...@englishrules.com>wrote:
> Hi Samuel,
> Sorry about the problems you're having with the code. The .lt() and .gt()
> methods were removed from jQuery shortly after the book was published. In
> their place, you can use the :lt() and :gt() selectors or the .slice()
> method. The .slice() method is quite versatile, and takes either one or two
> arguments. To replicate that code using .slice() you could do this:
>
> $table.find('tbody tr').show()
> .slice(0, 2)
> .hide()
> .end()
> .slice(5)
> .end();
>
> http://docs.jquery.com/Traversing/slice#startend
>
> Hope that helps.
>
>
> --Karl
>
> ____________
> Karl Swedberg
> www.englishrules.com
> www.learningjquery.com
>
>
>
>
> On Dec 30, 2008, at 10:30 PM, Samuel Wu wrote:
>
>
> Hi, everyone
>
> I started writing jquery from last week with the help from a very good
> book Learning Jquery.
>
> I met a problem when reading the book, which has the script:
>
> <code>
> $table.find('tbody tr').show()
> .lt(2)
> .hide()
> .end()
> .gt(5)
> .end();
> </code>
>
> Where 2 and 5 are different from the book, but I think it has no
> effect to the problem.
>
> I haven't met a lt or gt method before, I can only write
> <code>
> $table.find('tbody tr:lt(2)').hide();
> $table.find('tbody tr:gt(5)').hide();
> </code>
>
> I tried the author's code, which didn't work on my browser. the
> browser said
> "TypeError: $("table").find("tbody tr").show().lt is not a function"
>
> I also tried this way:
> <code>
> var $trow=$table.find('tbody tr')
> $trow.lt(2).hide()
> <code>
>
> the problem still exists there.
>
> My question is:
> Is lt or gt a method used as a selector ?
> If I want to implement the chain actions like the first code, how
> could I do that?
>
> Any help is appreciated. thanks very much. Happy new year.
>
>
>
--
Samuel Wu
