TextMetrics.alphabeticBaseline - Web APIs 编辑

The read-only alphabeticBaseline property of the TextMetrics interface is a double giving the distance from the horizontal line indicated by the CanvasRenderingContext2D.textBaseline property to the alphabetic baseline of 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.alphabeticBaseline; // -0;

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• TextMetrics