keyCode Property

Internet Development Index

Sets or retrieves the Unicode key code associated with the key that caused the event.


event.keyCode [ = sKeyCode ]

Possible Values

sKeyCodeInteger that specifies or receives the Unicode key code.

The property is read/write. The property has no default value.

Expressions can be used in place of the preceding value(s), as of Microsoft® Internet Explorer 5. For more information, see About Dynamic Properties.


The property is used with the onkeydown, onkeyup, and onkeypress events.

The property's value is 0 if no key caused the event.

Standards Information

There is no public standard that applies to this property.

Applies To