IdleDetector.onchange

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

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

Specification
Idle Detection API
# api-idledetector-onchange

Browser compatibility

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