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onkeyup Event

Event Object Reference Event Object

Example

Execute a JavaScript when the user releases a key:

<input type="text" id="fname" onkeyup="upperCase()" />

Try it yourself »

Definition and Usage

The onkeyup event occurs when a keyboard key is released.

Tip: The order of events related to the onkeyup event:

  1. onkeydown
  2. onkeypress
  3. onkeyup

Syntax

In HTML:

<element onkeyup="SomeJavaScriptCode">

In JavaScript:

object.onkeyup="SomeJavaScriptCode"

Parameter Description
SomeJavaScriptCode Required. Specifies a JavaScript to be executed when the event occurs

Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The onkeyup event is supported in all major browsers.

onkeyup is Supported by the Following HTML Tags:

<a>, <acronym>, <address>, <area>, <b>, <bdo>, <big>, <blockquote>, <body>, <button>, <caption>, <cite>, <code>, <dd>, <del>, <dfn>, <div>, <dt>, <em>, <fieldset>, <form>, <h1> to <h6>, <hr>, <i>, <input>, <kbd>, <label>, <legend>, <li>, <map>, <object>, <ol>, <p>, <pre>, <q>, <samp>, <select>, <small>, <span>, <strong>, <sub>, <sup>, <table>, <tbody>, <td>, <textarea>, <tfoot>, <th>, <thead>, <tr>, <tt>, <ul>, <var>

onkeyup is Supported by the Following JavaScript Objects:

Document, Window

Event Object Reference Event Object
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