The read-only actualBoundingBoxLeft property of the TextMetrics interface is a double giving the distance parallel to the baseline from the alignment point given by the CanvasRenderingContext2D.textAlign property to the left side of the bounding rectangle of the given text, in CSS pixels.
Examples
const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');
const text = ctx.measureText('foo'); // returns TextMetrics object
text.actualBoundingBoxLeft; // 0;
Specifications
| Specification |
|---|
| HTML Living Standard The definition of 'TextMetrics.actualBoundingBoxLeft' 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.
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
actualBoundingBoxLeft | Chrome
Full support
77
| Edge Full support 79 | Firefox Full support 74 | IE No support No | Opera ? | Safari Full support Yes | WebView Android Full support 77 | Chrome Android
Full support
77
| Firefox Android No support No | Opera Android ? | Safari iOS Full support Yes | Samsung Internet Android Full support 12.0 |
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.