HTML | onkeyup Event Attribute

This onkeyup event attribute works when the user releases the key from the keyboard.

Syntax:

<element onkeyup = "script">

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

Supported Tags: It is supported by all HTML elements except <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style>, and <title>.

Example:

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<!DOCTYPE html>
<html>
    <head>
        <title>onkeyup Event Attribute </title>
        <style>
            h1 {
                text-align: center;
                color: green;
            }
            h2 {
                text-align: center;
            }
            input[type=text] {
                width: 100%;
                padding: 12px 20px;
                margin: 8px 0;
                box-sizing: border-box;
                font-size: 24px;
                color: white;
            }
            p {
                font-size: 20px;
            }
        </style>
    </head>
    <body>
        <h1>GeeksforGeeks<h1>
        <h2>onkeyup Event Attribute</h2>
        <p>Release the key to set a green background color.</p>
        <input type="text" id="demo" onkeydown="keydownFunction()"
                onkeyup="keyupFunction()">
        <script>
            function keydownFunction() {
                document.getElementById("demo").style.backgroundColor = "blue";
            }
  
            function keyupFunction() {
                document.getElementById("demo").style.backgroundColor = "green";
            }
        </script>
    </body>
</html>                    

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Output:
Press the key:
onkeyup
Release the key:
onkeyup

Supported Browser: The browser supported by onkeyup event attribute are listed below:

  • Chrome
  • Internet Explorer
  • Firefox
  • Safari
  • Opera


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