ReadableStreamDefaultController: error() method

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

Note: The error() method can be called more than once, and can be called when the stream is not readable.

Syntax

js
error(e)

Parameters

e

The error you want future interactions to fail with.

Return value

None (undefined).

Exceptions

TypeError

Thrown if the source object is not a ReadableStreamDefaultController.

Examples

The A readable stream with an underlying push source and backpressure support example in the spec provides a good example of using ReadableStreamDefaultController.desiredSize to manually detect when the stream is full and apply backpressure, and also of using error() to manually trigger a stream error if another part of the system it relies on fails.

Specifications

Specification
Streams Standard
# rs-default-controller-error

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
error

Legend

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Full support
Full support

See also