The read-only emHeightDescent
property of the TextMetrics
interface is a double
giving the distance from the horizontal line indicated by the CanvasRenderingContext2D.textBaseline
property to the bottom of the em square in the line box, in CSS pixels.
Examples
const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');
const text = ctx.measureText('foo'); // returns TextMetrics object
text.emHeightDescent; // -2.40234375;
Specifications
Specification |
HTML Living StandardThe definition of 'TextMetrics.emHeightDescent' in that specification. |
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 Full support Yes Full support Yes Disabled' This feature is behind the |
Edge Full support 79 Full support 79 Disabled' From version 79: this feature is behind the |
Firefox Full support 74 Full support 74 Disabled' From version 74: this feature is behind the |
IE
No support No |
Opera
? |
Safari
Full support Yes |
WebView Android
No support No |
Chrome Android Full support Yes Full support Yes Disabled' This feature is behind the |
Firefox Android
No support No |
Opera Android
? |
Safari iOS
Full support Yes |
Samsung Internet Android
No support No |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.'
- Experimental. Expect behavior to change in the future.
- User must explicitly enable this feature.'
- User must explicitly enable this feature.
See also
TextMetrics.emHeightDescent by Mozilla Contributors is licensed under CC-BY-SA 2.5.