WritableStream: abort() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since May 2022.

Note: This feature is available in Web Workers.

The abort() method of the WritableStream interface aborts the stream, signaling that the producer can no longer successfully write to the stream and it is to be immediately moved to an error state, with any queued writes discarded.

Syntax

js
abort(reason)

Parameters

reason

A string providing a human-readable reason for the abort.

Return value

A Promise, which fulfills with the value given in the reason parameter.

Exceptions

TypeError

The stream you are trying to abort is not a WritableStream, or it is locked.

Examples

js
const writableStream = new WritableStream(
  {
    write(chunk) {
      // …
    },
    close() {
      // …
    },
    abort(err) {
      // …
    },
  },
  queuingStrategy,
);

// …

// abort the stream later on, when required
writableStream.abort();

Specifications

Specification
Streams
# ref-for-ws-abort③

Browser compatibility