Draft
This page is not complete.
This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The locked
read-only property of the WritableStream
interface returns a boolean indicating whether the WritableStream
is locked to a writer.
Syntax
var locked =
writableStream.locked;
Value
A Boolean
indicating whether or not the writable stream is locked.
Examples
const writableStream = new WritableStream({
write(chunk) {
...
},
close() {
...
},
abort(err) {
...
}
}, queuingStrategy);
...
const writer = writableStream.getWriter();
writableStream.locked
// should return true, as the stream has been locked to a writer
Specifications
Specification | Status | Comment |
---|---|---|
Streams The definition of 'locked' in that specification. |
Living Standard | Initial definition. |
Browser compatibility
The compatibility table in 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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
locked | Chrome Full support 59 | Edge Full support 16 | Firefox No support No | IE No support No | Opera Full support 47 | Safari ? | WebView Android Full support 59 | Chrome Android Full support 59 | Firefox Android No support No | Opera Android Full support 44 | 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.