PushMessageData: bytes() method
Baseline
2025
Newly available
Since January 2025, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is only available in Service Workers.
The bytes() method of the PushMessageData interface extracts push message data as a Uint8Array object.
Syntax
js
bytes()
Parameters
None.
Return value
A Uint8Array.
Exceptions
The returned Uint8Array is backed by an ArrayBuffer of bytes.
Exceptions thrown during creation of this backing buffer are re-thrown.
See TypedArray.
Examples
js
self.addEventListener("push", (event) => {
const buffer = event.data.bytes();
// do something with your typed array
});
Specifications
| Specification |
|---|
| Push API # dom-pushmessagedata-bytes |