ReadableStreamDefaultController.error() - Web APIs 编辑

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

readableStreamDefaultController.error(e);

Parameters

e

The error you want future interactions to fail with.

Return value

undefined.

Exceptions

TypeError

The source object is not a ReadableStreamDefaultController, or the stream is not readable for some other reason.

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

Browser compatibility

BCD tables only load in the browser