This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
Note: This feature is available in Web Workers.
The ready read-only property of the FontFaceSet interface returns a Promise that resolves to the given FontFaceSet.
The promise will only resolve once the document has completed loading fonts, layout operations are completed, and no further font loads are needed.
A Promise that resolves to the given FontFaceSet.
In the following example the value of ready is printed to the console once the promise has resolved.
async function isReady() {
let ready = await document.fonts.ready;
console.log(ready);
}
isReady();
| Specification |
|---|
| CSS Font Loading Module Level 3> # dom-fontfaceset-ready> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
ready |
35 | 79 | 41 | 22 | 10 | 35 | 41 | 22 | 10 | 3.0 | 37 | 10 |
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https://developer.mozilla.org/en-US/docs/Web/API/FontFaceSet/ready