The add() method of the FontFaceSet interface adds a new font to the set.
The add() method of the FontFaceSet interface adds a new font to the set.
js
add(font)
A new FontFaceSet.
InvalidModificationError DOMException
Thrown if this font is already included via the CSS @font-face rule.
In the following example a new FontFace object is created and then added to the FontFaceSet.
js
const font = new FontFace("MyFont", "url(myFont.woff2)"); document.fonts.add(font);
| Specification | 
|---|
| CSS Font Loading Module Level 3  # dom-fontfaceset-add  | 
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
add | 
35 | 79 | 41 | No | 22 | 10 | 37 | 35 | 41 | 22 | 10 | 3.0 | 
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    https://developer.mozilla.org/en-US/docs/Web/API/FontFaceSet/add