The isTrusted read-only property of the Event interface is a boolean that is true when the event was generated by a user action, and false when the event was created or modified by a script or dispatched via dispatchEvent.
var bool = event.isTrusted;
if (e.isTrusted) {
/* The event is trusted. */
} else {
/* The event is not trusted. */
}
| Specification | Status | Comment |
|---|---|---|
| DOM The definition of 'Event.isTrusted' in that specification. | Living Standard | |
| Document Object Model (DOM) Level 3 Events Specification The definition of 'Trusted events' in that specification. | Obsolete | Adds requirements regarding trusted and untrusted events, though it does not itself define the isTrusted property. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 46.0 [1] | (Yes) | (Yes) | No support [2] | 33 | No support |
| Feature | Android | Android Webview | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|---|
| Basic support | ? | 46.0 [1] | (Yes) | (Yes) | ? | ? | 33 | No support | 46.0 [1] |
[1] Starting with Chrome 53, untrusted events do not invoke the default action.
[2] In Internet Explorer, all events are trusted except those that are created with the createEvent() method.
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https://developer.mozilla.org/en-US/docs/Web/API/Event/isTrusted