Example
Execute a JavaScript when a user is pressing a key:
<input type="text" onkeydown="myFunction()">
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More "Try it Yourself" examples below.
Definition and Usage
The onkeydown attribute fires when the user is pressing a key (on the keyboard).
Tip: The order of events related to the onkeydown event:
- onkeydown
- onkeypress
- onkeyup
Browser Support
| Event Attribute | |||||
|---|---|---|---|---|---|
| onkeydown | Yes | Yes | Yes | Yes | Yes |
Differences Between HTML 4.01 and HTML5
None.
Syntax
<element onkeydown="script">
Attribute Values
| Value | Description |
|---|---|
| script | The script to be run on onkeydown |
Technical Details
| Supported HTML tags: | All HTML elements, EXCEPT: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style>, and <title> |
|---|
More Examples
Example
Using "onkeydown" together with the "onkeyup" attribute:
<input type="text" onkeydown="keydownFunction()" onkeyup="keyupFunction()">
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Related Pages
HTML DOM reference: onkeydown event