Variable PromiseRejectionEvent
PromiseRejectionEvent : {
prototype: PromiseRejectionEvent;
new (type: string, eventInitDict: PromiseRejectionEventInit): PromiseRejectionEvent;
}
prototype: PromiseRejectionEvent;
new (type: string, eventInitDict: PromiseRejectionEventInit): PromiseRejectionEvent;
}