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How to find an element based on a data-attribute value in jQuery?
To find an element based on a data-attribute value using jQuery is quite easy. Data attributes are custom attributes that allow you to store extra information on HTML elements using the data-* format.
Attribute Selector Syntax
jQuery provides a powerful attribute selector syntax to target elements with specific data attributes. The basic syntax is [data-attribute="value"] where you specify the attribute name and its value.
Example
You can try to run the following code to learn how to find an element based on a data-attribute value using jQuery ?
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
$('[data-slide="2"]').addClass('demo');
});
</script>
<style>
.demo {
font-size: 200%;
color: green;
}
</style>
</head>
<body>
<p data-slide="1">One</p>
<p data-slide="2">Two</p>
<p data-slide="3">Three</p>
</body>
</html>
The output of the above code is ?
One Two (displayed in larger green text) Three
Additional Selector Options
You can also use other attribute selectors with data attributes ?
// Find elements containing a specific value
$('[data-category*="tech"]')
// Find elements starting with a value
$('[data-name^="user"]')
// Find elements ending with a value
$('[data-type$="button"]')
Conclusion
Finding elements by data attributes in jQuery is straightforward using attribute selectors, making it easy to target specific elements based on custom data values stored in HTML.
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