This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The offsetY read-only property of the MouseEvent interface provides the offset in the Y coordinate of the mouse pointer between that event and the padding edge of the target node.
var yOffset = instanceOfMouseEvent.offsetY;
A double floating point value. Early versions of the spec defined this as an integer. See the Browser compatibility section for details.
| Specification | Status | Comment |
|---|---|---|
| CSS Object Model (CSSOM) View Module The definition of 'MouseEvent' in that specification. | Working Draft | Initial definition |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | Yes | Yes | 39 | 6 | Yes | Yes |
Value type changed from long to double
|
56 | ? | ? | ? | ? | ? |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Yes | Yes | Yes | 43 | ? | ? | ? |
Value type changed from long to double
|
56 | 56 | ? | ? | ? | ? | ? |
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https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/offsetY