Touch: screenX property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Returns the X coordinate of the touch point relative to the screen, not including any scroll offset.

Value

A number.

Examples

This example illustrates how to access the Touch object's Touch.screenX and Touch.screenY properties. The Touch.screenX property is the horizontal (x) coordinate of a touch point relative to the screen in CSS pixels. The Touch.screenY property is the vertical coordinate of a touch point relative to the screen in CSS pixels.

In following simple code snippet, we assume the user initiates multiple touch contacts on an element with an id of source and then releases contacts with the surface. When the touchstart event handler is invoked, each touch point's Touch.screenX and Touch.screenY coordinates are accessed.

js
// Register a touchstart listeners for the 'source' element
const src = document.getElementById("source");

src.addEventListener(
  "touchstart",
  (e) => {
    // Iterate through the touch points and log each screenX/Y coordinate.
    // The unit of each coordinate is CSS pixels.
    for (let i = 0; i < e.touches.length; i++) {
      console.log(`touchpoint[${i}].screenX = ${e.touches[i].screenX}`);
      console.log(`touchpoint[${i}].screenY = ${e.touches[i].screenY}`);
    }
  },
  false,
);

Specifications

Specification
Touch Events
# dom-touch-screenx

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
screenX

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
Partial support
Partial support
No support
No support
Has more compatibility info.