This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The WritableStreamDefaultController interface of the 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
WritableStreamDefaultController()- Creates a new
WritableStreamDefaultControllerobject instance.
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 error is broken');
},
write(chunk, controller) {
...
},
close(controller) {
...
},
abort(err) {
...
}
});
Specifications
| Specification | Status | Comment |
|---|---|---|
| Streams The definition of 'WritableStreamDefaultController' in that specification. |
Living Standard | Initial definition. |
Browser Compatibility
We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 58 | (Yes) | No support | ? | 45 | ? |
| Feature | Android Webview | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | 58 | 58 | (Yes) | No support | ? | 45 | ? |
Document Tags and Contributors
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Contributors to this page:
chrisdavidmills,
abbycar
Last updated by:
chrisdavidmills,