Draft
This page is not complete.
This is an experimental technology
Check 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 |
---|---|---|
Streams The 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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
closed | 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.