WritableStreamDefaultController.error()

Draft
This page is not complete.

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The error() method of the WritableStreamDefaultController interface causes any future interactions with the associated stream to error.

 If the writer is active, the abort() method behaves the same as that for the associated stream (WriteableStream.abort()). If not, it returns a rejected promise.

Syntax

writableStreamDefaultControllerInstance.error(e);

Parameters

e
A DOMString representing the error you want future interactions to fail with.

Return value

Void.

Exceptions

TypeError
The stream you are trying to error is not a WritableStream.

Examples

const writableStream = new WritableStream({
  start(controller) {
    // do stuff with controller

    // error stream if necessary
    controller.error('My error is broken');
  },
  write(chunk, controller) {
    ...
  },
  close(controller) {
    ...
  },
  abort(err) {
    ...
  }
});

Specifications

Specification Status Comment
Streams
The definition of 'error()' in that specification.
Living Standard Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
Experimental
Chrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

Document Tags and Contributors

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