The DOMPointReadOnly interface's y property holds the vertical coordinate, y, for a read-only point in space. If your script needs to be able to change the value of this property, you should instead use the DOMPoint object.
In general, positive values of y mean downward, and negative values of y mean upward, assuming no transforms have resulted in a reversal.
Syntax
var yPos = DOMPointReadOnly.y;
Value
A double-precision floating-point value indicating the y coordinate's value for the point. This value is unrestricted, meaning that it is allowed to be infinite or invalid (that is, its value may be NaN or ±Infinity).
Specifications
| Specification | Status | Comment |
|---|---|---|
| Geometry Interfaces Module Level 1 The definition of 'y' 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.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Chrome Full support 61 | Edge No support No | Firefox Full support 31 | IE No support No | Opera Full support 48 | Safari No support No | WebView Android Full support 61 | Chrome Android Full support 61 | Edge Mobile No support No | Firefox Android Full support 31 | Opera Android Full support 48 | Safari iOS No support No | Samsung Internet Android ? |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown