javascript - jQuery how to get data-value where class active? - Stack Overflow

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I want to get data-value where the class is active. when I am clicking on nav-tabs it alerting undefined How can I resolve this error? Please help me.

HTML:

<ul class="nav nav-tabs">
  <li class="active" data-value="buy"><a data-toggle="tab" href="#home">BUY</a></li>
  <li data-value="rent"><a data-toggle="tab" href="#home">RENT</a></li>
  <li><a href="Post_Property.html">SALE</a></li>
</ul>

jQuery:

  $(".nav-tabs").click(function(){
    alert($(".active").attr("data-value"));
  })

I want to get data-value where the class is active. when I am clicking on nav-tabs it alerting undefined How can I resolve this error? Please help me.

HTML:

<ul class="nav nav-tabs">
  <li class="active" data-value="buy"><a data-toggle="tab" href="#home">BUY</a></li>
  <li data-value="rent"><a data-toggle="tab" href="#home">RENT</a></li>
  <li><a href="Post_Property.html">SALE</a></li>
</ul>

jQuery:

  $(".nav-tabs").click(function(){
    alert($(".active").attr("data-value"));
  })

• javascript
• jquery

Share Improve this question Follow asked May 9, 2017 at 10:49 shah rushabhshah rushabh 4111 gold badge22 silver badges99 bronze badges 4

• 1 probably some other element in page that has that class and it is higher in the dom than the one you want. – charlietfl Commented May 9, 2017 at 10:51
• Don't see any issue with your code. It should work. Are you getting any error in browser console? – vijayP Commented May 9, 2017 at 10:54
• The problem is here class active changing after an alert so I want to get cursor clicked on which LI? – shah rushabh Commented May 9, 2017 at 10:55
• 1 Are you using bootstrap.js for tabs? If so use bootstrap tabs events api from docs – charlietfl Commented May 9, 2017 at 11:01

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3 Answers 3

Sorted by: Reset to default 2

$('.nav-tabs').on('shown.bs.tab', function (e) {
      alert($(".active").attr("data-value"));
    });

<script src="https://ajax.googleapis./ajax/libs/jquery/2.1.1/jquery.min.js"></script><link href="https://maxcdn.bootstrapcdn./bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn./bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>

<ul class="nav nav-tabs">
  <li class="active" data-value="buy"><a data-toggle="tab" href="#home">BUY</a></li>
  <li data-value="rent"><a data-toggle="tab" href="#home">RENT</a></li>
  <li><a href="Post_Property.html">SALE</a></li>
</ul>

I had updated the changes in the code u can use shown.bs.tab method for bootstrap.

You can get data attribute like:

$(".active").data("value");

it will return the data-value and in your case the DOM is not properly traversed. The proper code is:

$(".nav-tabs").click(function(){
    alert($(this).find(".active").data("value"));
})

as .active is the child of .nav-tabs, so you have to traverse it.

Simply traverse and get the active tag, like this:

$(".nav-tabs").click(function(){
    alert($(this).find(".active").attr("data-value"));
});

Also, instead of attr('data-value'), you can use data("value").

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