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This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.
The closed
read-only property of the WritableStreamDefaultWriter
interface returns a promise that fulfills if the stream becomes closed or the writer's lock is released, or rejects if the stream errors.
Syntax
var closed = writableStreamDefaultWriter.closed;
Value
A Promise
.
Examples
const writableStream = new WritableStream({
start(controller) {
},
write(chunk, controller) {
...
},
close(controller) {
...
},
abort(err) {
...
}
}, queuingStrategy);
...
const writer = writableStream.getWriter();
..
// check if the stream is closed
writer.closed.then(() => {
console.log('writer closed');
})
Specifications
Specification | Status | Comment |
StreamsThe definition of 'closed' in that specification. | Living Standard | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chrome
Full support 59 |
Edge
Full support 16 |
Firefox
No support No |
IE
No support No |
Opera
Full support 46 |
Safari
? |
WebView Android
Full support 59 |
Chrome Android
Full support 59 |
Firefox Android
No support No |
Opera Android
Full support 43 |
Safari iOS
? |
Samsung Internet Android
Full support 7.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.'
- Experimental. Expect behavior to change in the future.
WritableStreamDefaultWriter.closed by Mozilla Contributors is licensed under CC-BY-SA 2.5.