The closed
read-only property of the WritableStreamDefaultWriter
interface returns a Promise
that fulfills if the stream becomes closed, or rejects if the stream errors or the writer's lock is released.
The closed
read-only property of the WritableStreamDefaultWriter
interface returns a Promise
that fulfills if the stream becomes closed, or rejects if the stream errors or the writer's lock is released.
A Promise
.
js
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"); });
Specification |
---|
Streams Standard # ref-for-default-writer-closed② |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
closed |
59 | 16 | 100 | No | 46 | 14.1 | 59 | 59 | 100 | 43 | 14.5 | 7.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/WritableStreamDefaultWriter/closed