WritableStreamDefaultWriter.closed

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The closed getter 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 = writableStreamDefaultWriterInstance.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

No compatibility data found. Please contribute data for "path.to.feature.NameOfTheProperty" (depth: 1) to the MDN compatibility data repository.

Document Tags and Contributors

 Contributors to this page: chrisdavidmills
 Last updated by: chrisdavidmills,