button property

Indicates which pointer device button has changed.

Syntax

Property values

Type: number

-1

Mouse move with no buttons pressed(PointerEvent only)

0

• Left mouse button press, or
• Touch contact (PointerEvent only), or
• Pen contact (PointerEvent only)

1

Middle mouse button press

2

• Right mouse button press, or
• Pen contact with barrel button pressed (PointerEvent only)

3

X1 (back) mouse button press (PointerEvent only)

4

X2 (forward) mouse button press (PointerEvent only)

5

Pen contact with eraser button pressed (PointerEvent only)

Standards information

• Document Object Model (DOM) Level 3 Events Specification

See also

DragEvent

MouseEvent

MouseWheelEvent

WheelEvent