CommandEvent: source property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The source read-only property of the CommandEvent interface returns an EventTarget representing the control that invoked the given command.

Value

An EventTarget object. Usually an HTMLButtonElement.

Examples

In the following simple example we've set up an event listener to add a temporary class to the button element upon a CommandEvent:

js
document.body.addEventListener(
  "command",
  (event) => {
    const theButton = event.source;

    theButton.classList.add("just-pressed");

    setTimeout(() => {
      theButton.classList.remove("just-pressed");
    }, 1000);
  },
  { capture: true },
);

Specifications

Specification
HTML
# dom-commandevent-source

Browser compatibility

See also