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The event attribute onkeyup triggered when the user (on the keyboard) releases a key in html
- 黄舟Original
- 2017-11-06 09:37:412124browse
Example
Execute a section of JavaScript when the user relaxes the keystroke:
<input type="text" onkeyup="displayResult()">
Browser support
IE
Firefox
Chrome
Safari
Opera
All major browsers support onkeyup attribute.
Definition and Usage
The onkeyup attribute is triggered when the user releases a key (on the keyboard).
Tip: The order of events relative to the onkeyup event:
onkeydown onkeypress onkeyup
Note: The onkeyup attribute does not apply to the following Elements: dde6fb694e6711ae5e6f381704c04ae4, 71af07a0e88a1ac1ff73f855702ac153, 0c6dc11e160d3b678d68754cc175188a, 93f0f5c25f18dab9d176bd4f6de5d30e, 100db36a723c770d327fc0aef2ce13b1, d5ba1642137c3f32f4f4493ae923989c, e8e496c15ba93d81f6ea4fe5f55a2244, 0c68fef83818661b6da588c77ca3985e, 3f1c4e4b6b16bbbd69b2ee476dc4f83a, ab52177e825fb870455eeb8df52ef38e.
Differences between HTML 4.01 and HTML5
None.
Syntax
<element onkeyup="script">
Attribute value
| Value | Description |
| script | Script to run when onkeyup occurs. |
onkeyup event occurs when the keyboard key is released
<html>
<head>
<script type="text/javascript">
function upperCase(x)
{
var y=document.getElementById(x).value
document.getElementById(x).value=y.toUpperCase()
}
</script>
</head>
<body>
输入您的姓名： <input type="text" id="fname" onkeyup="upperCase(this.id)" />
</body>
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