JavaScript KeyboardEvent altKey Property

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JavaScript KeyboardEvent altKey Property

The event.altKey property indicates whether the alt key was pressed or not when the event occured.

Note: This property is read-only.


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<!DOCTYPE html> <html> <body onkeydown="myFunction(event)"> <script> function myFunction(e){ if(e.altKey) alert("altKey was Pressed"); else alert("altKey was not Pressed"); } </script> </body> </html>



Return Values

trueIf the alt key was pressed.
falseIf the alt key was not pressed.


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