javascript - Why does Infinity passed to interval does not wait forever in Rx.js? -

can please explain me why following snippet outputs digits 0 6 ?

 rx.observable.interval(1/0).take(6).foreach(x => console.log(x)); 

output: 0 1 2 3 4 5

you can see the source code of rxjs observable.interval expects (and uses) input integer:

module rx {     export interface observablestatic {         /**          *  returns observable sequence produces value after each period.          *          * @example          *  1 - res = rx.observable.interval(1000);          *  2 - res = rx.observable.interval(1000, rx.scheduler.timeout);          *          * @param {number} period period producing values in resulting sequence (specified integer denoting milliseconds).          * @param {scheduler} [scheduler] scheduler run timer on. if not specified, rx.scheduler.timeout used.          * @returns {observable} observable sequence produces value after each period.          */         interval(period: number, scheduler?: ischeduler): observable<number>;     } } 

and since in javascript

(1/0) === infinity 

and infinity 0 when turned integer:

(infinity | 0) === 0