Sid Gifari File Manager Pro v10.0.3

✏️ Editing: throttle.js Writable

import { operate } from '../util/lift';
import { createOperatorSubscriber } from './OperatorSubscriber';
import { innerFrom } from '../observable/innerFrom';
export function throttle(durationSelector, config) {
    return operate((source, subscriber) => {
        const { leading = true, trailing = false } = config !== null && config !== void 0 ? config : {};
        let hasValue = false;
        let sendValue = null;
        let throttled = null;
        let isComplete = false;
        const endThrottling = () => {
            throttled === null || throttled === void 0 ? void 0 : throttled.unsubscribe();
            throttled = null;
            if (trailing) {
                send();
                isComplete && subscriber.complete();
            }
        };
        const cleanupThrottling = () => {
            throttled = null;
            isComplete && subscriber.complete();
        };
        const startThrottle = (value) => (throttled = innerFrom(durationSelector(value)).subscribe(createOperatorSubscriber(subscriber, endThrottling, cleanupThrottling)));
        const send = () => {
            if (hasValue) {
                hasValue = false;
                const value = sendValue;
                sendValue = null;
                subscriber.next(value);
                !isComplete && startThrottle(value);
            }
        };
        source.subscribe(createOperatorSubscriber(subscriber, (value) => {
            hasValue = true;
            sendValue = value;
            !(throttled && !throttled.closed) && (leading ? send() : startThrottle(value));
        }, () => {
            isComplete = true;
            !(trailing && hasValue && throttled && !throttled.closed) && subscriber.complete();
        }));
    });
}
//# sourceMappingURL=throttle.js.map

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