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name : debounce.js
 "use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.debounce = void 0;
var lift_1 = require("../util/lift");
var noop_1 = require("../util/noop");
var OperatorSubscriber_1 = require("./OperatorSubscriber");
var innerFrom_1 = require("../observable/innerFrom");
function debounce(durationSelector) {
    return lift_1.operate(function (source, subscriber) {
        var hasValue = false;
        var lastValue = null;
        var durationSubscriber = null;
        var emit = function () {
            durationSubscriber === null || durationSubscriber === void 0 ? void 0 : durationSubscriber.unsubscribe();
            durationSubscriber = null;
            if (hasValue) {
                hasValue = false;
                var value = lastValue;
                lastValue = null;
                subscriber.next(value);
            }
        };
        source.subscribe(OperatorSubscriber_1.createOperatorSubscriber(subscriber, function (value) {
            durationSubscriber === null || durationSubscriber === void 0 ? void 0 : durationSubscriber.unsubscribe();
            hasValue = true;
            lastValue = value;
            durationSubscriber = OperatorSubscriber_1.createOperatorSubscriber(subscriber, emit, noop_1.noop);
            innerFrom_1.innerFrom(durationSelector(value)).subscribe(durationSubscriber);
        }, function () {
            emit();
            subscriber.complete();
        }, undefined, function () {
            lastValue = durationSubscriber = null;
        }));
    });
}
exports.debounce = debounce;
//# sourceMappingURL=debounce.js.map
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