Document: fonts property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
The fonts
property of the Document
interface returns the FontFaceSet
interface of the document.
This feature is part of the CSS Font Loading API.
Value
The returned value is the FontFaceSet
interface of the document.
The FontFaceSet
interface is useful for loading new fonts, checking the status of previously loaded fonts etc.
Examples
Doing operation after fonts are loaded
document.fonts.ready.then((fontFaceSet) => {
// Any operation that needs to be done only after all used fonts
// have finished loading can go here.
const fontFaces = [...fontFaceSet];
console.log(fontFaces);
// some fonts may still be unloaded if they aren't used on the site
console.log(fontFaces.map((f) => f.status));
});
The promise fulfils when loading and layout operations of all used fonts are done. The set of used fonts can be different from the set of declared fonts, e.g. if optional fonts (i.e. fonts declared via font-display: optional
) were not able to load in time.
Specifications
Specification |
---|
CSS Font Loading Module Level 3 # FontFaceSet-interface |
Browser compatibility
BCD tables only load in the browser
See also
FontFaceSet
interfaceFontFace