Web/API/AbstractWorker

From Get docs


The AbstractWorker interface of the Web Workers API is an abstract interface that defines properties and methods that are common to all types of worker, including not only the basic Worker, but also ServiceWorker and SharedWorker. As an abstract class, you don't directly interact with AbstractWorker.

Properties

The AbstractWorker interface doesn't inherit any properties.

Event handlers

AbstractWorker.onerror
An EventListener which is invoked whenever an ErrorEvent of type error bubbles through the worker.

Methods

The AbstractWorker interface doesn't implement or inherit any methods.

Example

As an abstract interface, you won't directly use AbstractWorker in your code. Instead, you'll interact with either Worker or SharedWorker, both of which inherit the properties of AbstractWorker.

This code snippet demonstrates the creation of a new Worker using the Worker() constructor; it also shows how to then send a message to the worker.

var myWorker = new Worker('worker.js');

first.onchange = function() {
  myWorker.postMessage([first.value, second.value]);
  console.log('Message posted to worker');
}

The worker's code is loaded from the file "worker.js". This code assumes that there's an <input> element represented by first; an event handler for the change event is established so that when the user changes the value of first, a message is posted to the worker to let it know.

You can find more examples on the MDN Web Docs GitHub repository:

Specifications

Specification Status Comment
HTML Living StandardThe definition of 'AbstractWorker' in that specification. Living Standard No change from Unknown.

Browser compatibility

Update compatibility data on GitHub

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
AbstractWorker Chrome

Full support 4

Edge

Full support 12

Firefox

Full support 3.5

IE

Full support 10

Opera

Full support 10.6

Safari

Full support 4

WebView Android

Full support 4.4

Chrome Android

Full support 18

Firefox Android

Full support 4

Opera Android

Full support 11

Safari iOS

Full support 5.1

Samsung Internet Android

Full support 1.0

onerror Chrome

Full support 4

Edge

Full support 12

Firefox

Full support 3.5

IE

Full support 10

Opera

Full support 10.6

Safari

Full support 4

WebView Android

Full support 4.4

Chrome Android

Full support 18

Firefox Android

Full support 4

Opera Android

Full support 11

Safari iOS

Full support 5.1

Samsung Internet Android

Full support 1.0

Legend

Full support  
Full support


See also