HTML onkeyup Event Attribute Use cases

In JavaScript, use the keyup event listener on the textbox, then check if the event’s keyCode or `key` property equals 13, indicating the Enter key press.

In jQuery, use the keyup() function along with setTimeout() to introduce a delay. This delays execution of the specified function until after the key has been released for the defined duration.

Supported Browser

The browser supported by value attribute in option tag are listed below:



HTML onkeyup Event Attribute

The HTML onkeyup event attribute executes JavaScript code when a user releases a key after pressing it within an input field or textarea, enabling dynamic responses to keyboard input.

It also enables real-time interaction with user input in web forms or applications and is commonly used for live search functionality, password strength checks, or dynamic form validation.

Syntax: 

<element onkeyup = "script">

Attribute Value: This attribute contains single value script which works when the keyboard key is released. 

HTML onkeyup Supported Tags

It supports all HTML elements Except- 

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