IdleDetector.onchange

The onchange EventHandler of the IdleDetector interface is called when the value of userState or screenState has changed. This method receives an Event object.

Syntax

IdleDetector.onchange = function;
IdleDetector.addEventListener('change', function);

Example

In the following example, the change callback prints the status of userState and screenState to the console.

    idleDetector.addEventListener('change', () => {
      const userState = idleDetector.userState;
      const screenState = idleDetector.screenState;
      console.log(`Idle change: ${userState}, ${screenState}.`);
    });

Specifications

Browser compatibility