2.3.4.5 onbeforecut
onbeforecut of type Function
Occurs on the source object before the selection is deleted from the document.
Return true
from the event
handler to disable the Cut shortcut.
To invoke, select text and right-click or press Ctrl+X.
Bubbles: Yes
Cancelable: Yes
Context Info: dataTransfer
This attribute is an extension to HTMLElement.
See also onbeforecopy, onbeforepaste.