MouseEvent shiftKey Property

Was the "SHIFT" key pressed when the mouse button was clicked:

if (event.shiftKey) {
text = "The SHIFT key was pressed!";
} else {
text = "The SHIFT key was NOT pressed!";
}

Description

The shiftKey property returns true if the shift key is pressed when a mouse event is triggered, otherwise it returns false.

The shiftKey property is read-only.

event.shiftKey

Return Value:	A Boolean. `true` if the shift key was pressed when a mouse event occured, otherwise `false`.
DOM Version:	DOM Level 2 Events

event.shiftKey is a DOM Level 2 (2001) feature.

It is fully supported in all browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	9-11