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node_modules/rxjs/_esm2015/internal/observable/interval.js

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+import { Observable } from '../Observable';
+import { async } from '../scheduler/async';
+import { isNumeric } from '../util/isNumeric';
+export function interval(period = 0, scheduler = async) {
+    if (!isNumeric(period) || period < 0) {
+        period = 0;
+    }
+    if (!scheduler || typeof scheduler.schedule !== 'function') {
+        scheduler = async;
+    }
+    return new Observable(subscriber => {
+        subscriber.add(scheduler.schedule(dispatch, period, { subscriber, counter: 0, period }));
+        return subscriber;
+    });
+}
+function dispatch(state) {
+    const { subscriber, counter, period } = state;
+    subscriber.next(counter);
+    this.schedule({ subscriber, counter: counter + 1, period }, period);
+}
+//# sourceMappingURL=interval.js.map