The MouseEvent.movementX read-only property provides the shift in the X coordinate of the mouse pointer between that event and the previous mousemove event. In other words, the value of that property is computed that way : currentEvent.movementX = currentEvent.screenX - previousEvent.screenX.
Syntax
var xShift = instanceOfMouseEvent.movementX
Return value
A number
Specifications
| Specification | Status | Comment |
|---|---|---|
| Pointer Lock The definition of 'MouseEvent.movementX' in that specification. |
Candidate Recommendation | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 37 22 — 37 webkit | Yes | 41 1 — 41 moz | No | ? | No |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | 37 | 37 Yes — 37 webkit | Yes | 41 4 — 41 moz | ? | No | ? |