HTML onkeydown-egenskab for begivenhed

HTML Event Attributes

Eksempel

Når brugeren trykker på en tast, udføres et stykke JavaScript:

<input type="text"> onkeydown="displayResult()">

Try It Yourself

Browser Support

IE Firefox Chrome Safari Opera

All major browsers support the onkeydown attribute.

Definition and Usage

The onkeydown attribute triggers when the user (on the keyboard) presses a key.

Tip:Event order relative to onkeydown event:

  • onkeydown
  • onkeypress
  • onkeyup

Note:The onkeydown attribute is not applicable to the following elements: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style> or <title>.

Differences between HTML 4.01 and HTML5

None.

Syntax

<element onkeydown="script">

Attribute Value

Value Description
script Script that runs when onkeydown occurs.

HTML Event Attributes