What Does the jQuery :image Selector Target?

This article provides an overview of the jQuery :image selector, explaining its specific functionality, common misconceptions, and practical usage. Readers will learn the exact HTML elements this selector targets, why it does not match standard image tags, and the recommended modern alternatives for optimal DOM query performance.

In jQuery, the :image selector specifically targets <input> elements with the attribute type="image". These elements are typically used as submit buttons that display a graphical image rather than standard button text.

A common misconception is that the :image selector selects standard HTML <img> tags. It does not. If your goal is to select standard HTML image elements, you must use the standard element selector $('img').

Using the :image selector is functionally equivalent to the attribute selector:

$(':image')
// is equivalent to:
$('input[type="image"]')

Because :image is a custom jQuery pseudo-selector and not part of the official CSS specification, browsers cannot utilize the high-speed native querySelectorAll() method when processing it. For improved performance in modern web applications, it is best practice to use the standard CSS selector syntax instead:

$('input[type="image"]')

This approach achieves the exact same result while leveraging browser-native query engine optimizations.