PointerEvent.width

The width read-only property of the PointerEvent interface represents the width of the pointer's contact geometry along the x-axis, measured in CSS pixels. Depending on the source of the pointer device (such as a finger), for a given pointer, each event may produce a different value.

If the input hardware cannot report the contact geometry to the browser, the width defaults to 1.

Syntax

var contactWidth = pointerEvent.width;

Return value

contactWidth
The width of the event's contact area (in CSS pixels).

Example

This example illustrates using the PointerEvent interface's width and height properties to calculate the contact area.

target.addEventListener("pointerdown", function(ev) {
   // Calculate the contact area
   var area = ev.width * ev.height;
 }, false);

Specifications

Specification Status Comment
Pointer Events ā€“ Level 2
The definition of 'width' in that specification.
Working Draft Non-stable version.
Pointer Events
The definition of 'width' in that specification.
Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
widthChrome Full support 55Edge Full support 12Firefox Full support 59
Full support 59
Full support 41
Disabled
Disabled From version 41: this feature is behind the dom.w3c_pointer_events.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE Full support 11
Full support 11
Partial support 10
Notes
Notes Returns values in screen pixels instead of CSS document pixels.
Opera Full support 42Safari Full support 13WebView Android Full support 55Chrome Android Full support 55Firefox Android Full support 41
Disabled
Full support 41
Disabled
Disabled From version 41: this feature is behind the dom.w3c_pointer_events.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support 42Safari iOS Full support 13Samsung Internet Android Full support 6.0

Legend

Full support Ā 
Full support
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.