The command and commandfor attributes for the <button> HTML element dispatch an action to an element when the button is invoked (by click or keystroke), as a declarative alternative to addEventListener() calls or onclick attribute handlers.

Learning resources on MDN

• CommandEvent
• CommandEvent: CommandEvent() constructor
• CommandEvent: command property
• CommandEvent: source property
• HTMLButtonElement: command property
• HTMLButtonElement: commandForElement property
• HTMLElement: command event

Browser support

• Chrome 135 Released on 2025-04-01
• Chrome Android 135 Released on 2025-04-01
• Edge 135 Released on 2025-04-04
• Firefox ❌
• Firefox for Android ❌
• Safari ❌
• Safari on iOS ❌

View web-platform-tests results for this feature - View the feature source file (dist) - Edit the feature - Report an issue about this feature