Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The change
event of the IdleDetector
interface fires when the value of userState
or screenState
has changed.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The change
event of the IdleDetector
interface fires when the value of userState
or screenState
has changed.
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener('change', event => { }); onchange = event => { };
A generic Event
.
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}.`); });
Specification |
---|
Idle Detection API # api-idledetector-onchange |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
change_event |
94 |
94 |
No |
No |
80 |
No |
94 |
94 |
No |
66 |
No |
17.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/IdleDetector/change_event