BackgroundFetchRegistration.downloaded
The downloaded read-only property of the BackgroundFetchRegistration interface returns the size in bytes that has been downloaded, initially 0.
Syntax
let downloaded = BackgroundFetchRegistration.downloaded;
Value
A number.
Examples
Logging BackgroundFetchRegistration.downloaded to the console returns the number of bytes downloaded.
console.log(bgFetch.downloaded);
Specifications
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
downloaded |
74 |
79 |
No |
No |
62 |
No |
No |
74 |
No |
53 |
No |
11.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/BackgroundFetchRegistration/downloaded