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jQuery return position of list element with class on table column click

开发者 https://www.devze.com 2022-12-17 21:29 出处:网络
I was wondering how to return the position of a list element with a class of \'currentTab\' in the following unordered list:

I was wondering how to return the position of a list element with a class of 'currentTab' in the following unordered list:

<ul id="coverTabs">
    <li class="currentTab"><a href="#">Individual</a></li>
    <li><a href="#">Couple</a></li>
    <li><a href="#">Family</a></li>
    <li><a href="#">Single parent family</a></li>
</ul>  

The class is set in the HTML to start. The following sets the clicked tab to 'currentTab' and then removes the previous class:

$('ul#coverTabs > li').live('click', function() {

    // Clickable tabs
    // Removes default class applied in HTML and onClick adds 'currentTab' class
    $(".currentTab").removeClass("currentTab");
    $(this).addClass("currentTab"); 

});

I thought if i added the following to the above it would return the position of the tab that is currently current so to speak:

    // Find the active tab
    var tabPosition = $('ul#coverTabs > li.currentTab').index ($('.currentTab'));
    var tabPosition = 开发者_StackOverflow中文版tabPosition + 1

It doesn't seem to work for me.


Use the this keyword when referring to the current item ..

var tabPosition = $('ul#coverTabs > li').index ($(this));

Although the problem in your case was that you were limiting the index inside the currentTab, so you were selecting only one ..

var tabPosition = $('ul#coverTabs > li').index ($('.currentTab'));

the above should work as well (note that i have removed the .currentTab from the first selector)

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