onkeyup (HTML attribute)
| Depr. | Version |
|---|---|
| No | HTML 4 |
| IE5.5+ | FF1+ | SA1.3+ | OP9.2+ |
|---|---|---|---|
| Full | Full | Full | Full |
Syntax
Description
The
onkeyup event handler captures the moment at which
a previously pressed key is released while focus is on the element to
which the onkeyup attribute is applied. Note that a
keydown event followed by a keyup event automatically generates a keypress
event, which can be captured using the onkeydown,
onkeyup, and onkeypress
attributes.
Example
This attribute might be used in a case in which, for example, the user presses the space key until an activity on screen is completed; when the user releases the key,onkeyup may be used to pause the action, like
so:<body onkeydown="increasePower();" onkeyup="holdPowerLevel();"/>
Value
This attribute has no fixed value.
It’s up to the author to decide on the scripting that’s included here, be
that a call to one or more defined functions, or a simple
alert() statement.
Compatibility
| Internet Explorer | Firefox | Safari | Opera | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 5.5 | 6.0 | 7.0 | 1.0 | 1.5 | 2.0 | 1.3 | 2.0 | 3.0 | 9.2 | 9.5 |
| Full | Full | Full | Full | Full | Full | Full | Full | Full | Full | Full |
Every browser listed supports this attribute. However, it should be avoided as it encourages the mixing of content and behavior.
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