How to Dynamically Add a Class to an Element Based on Its Data Attribute Value Using jQuery?

Linda Hamilton
Release: 2024-11-04 15:02:03
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How to Dynamically Add a Class to an Element Based on Its Data Attribute Value Using jQuery?

Finding Elements with Specific Data Attribute Values Using jQuery

Original Question: How can I dynamically add a class to an element based on its data attribute value using jQuery?

Solution:

To add a class to an element based on its data attribute value, you can use the Attribute Equals Selector. Here's an example:

<code class="javascript">$('.slide-link[data-slide="0"]').addClass('active');</code>
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In this code, we're targeting any elements with the class slide-link and a data-slide attribute with a value of "0". Then, we're adding the active class to those elements.

Additional Note:

The jQuery find() method is used to find descendants of the current element, filtered by a selector. In our example, we don't need to use find() because the attribute selector we're using will match the desired elements directly.

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