MouseEvent button Property
Example
Find out which mouse button that was pressed when a mouse event was triggered:
alert("You pressed
button: " + event.button)
Try it yourself »
Definition and Usage
The button property returns a number that indicates which mouse button was pressed when a mouse event was triggered.
This property is mostly used together with the onmousedown event.
Note: This property is read-only.
Browser Support
The numbers in the table specify the first browser version that fully supports the property.
| Property | |||||
|---|---|---|---|---|---|
| button | Yes | Yes | Yes | Yes | 8.0 |
Syntax
event.button
Technical Details
| Return Value: |
A Number, representing which mouse button that was pressed when the mouse event occured. Possible values:
Note: Internet Explorer 8 and earlier has different return values:
|
|---|---|
| DOM Version: | DOM Level 2 Events |
Related Pages
HTML DOM reference: MouseEvent buttons Property
HTML DOM reference: MouseEvent which Property
Event Object
