How to Target and Manipulate an Element Based on its Data Attribute in jQuery?

Finding Elements by Data Attribute Value in jQuery

You have multiple elements with similar structures and data attributes. The task is to target and manipulate a specific element based on its data attribute value.

In your case, you want to add a class to the element with a data-slide attribute value of 0. To achieve this, you can utilize the Attribute Equals Selector syntax in jQuery.

Solution:

Explanation:

1. Attribute Equals Selector: [attribute="value"]: selects elements based on the specified attribute and value. Here, [data-slide="0"] matches the element that has a data-slide attribute with a value of 0.
2. addClass() Method: adds a new CSS class to the selected element. In this case, .addClass('active') applies the active class to the element.

Comparison with find() Method:

While your previous attempt used the find() method, it operates differently from the Attribute Equals Selector. find() searches for descendants of the selected elements that match the specified selector. In this context, it would look for child elements with a data-slide attribute value of 0, which is not what you intended.

Fiddle Demo:

[Example Fiddle Demo](https://jsfiddle.net/example-of-attribute-equals-selector/)

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