The closed
read-only property of the ReadableStreamDefaultReader
interface returns a promise that fulfills if the stream becomes closed or the reader's lock is released, or rejects if the stream errors.
Syntax
var closed =
readableStreamDefaultReader.closed;
Value
A Promise
.
Examples
In this snippet, a previously-created reader is queried to see if the stream has been closed. When it is closed, the promise fulfills and the message is logged to the console.
reader.closed.then(() => { console.log('reader 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 ? | Edge ? | Firefox
Full support
65
| IE ? | Opera ? | Safari ? | WebView Android ? | Chrome Android ? | Firefox Android
Full support
65
| Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- User must explicitly enable this feature.
- User must explicitly enable this feature.