WritableStreamDefaultController
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The WritableStreamDefaultController
interface of the Streams API represents a controller allowing control of a WritableStream
's state. When constructing a WritableStream
, the underlying sink is given a corresponding WritableStreamDefaultController
instance to manipulate.
Constructor
None. WritableStreamDefaultController
instances are created automatically during WritableStream
construction.
Properties
None.
Methods
WritableStreamDefaultController.error()
-
Causes any future interactions with the associated stream to error.
Examples
const writableStream = new WritableStream({
start(controller) {
// do stuff with controller
// error stream if necessary
controller.error('My stream is broken');
},
write(chunk, controller) {
...
},
close(controller) {
...
},
abort(err) {
...
}
});
Specifications
Specification |
---|
Streams Standard # ws-default-controller-class |
Browser compatibility
BCD tables only load in the browser