docs: function(module, exports, __webpack_require__) {
  
  	"use strict";
  	var __extends = (this && this.__extends) || function (d, b) {
  	    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
  	    function __() { this.constructor = d; }
  	    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
  	};
  	var Subscriber_1 = __webpack_require__(8);
  	/**
  	 * Counts the number of emissions on the source and emits that number when the
  	 * source completes.
  	 *
  	 * <span class="informal">Tells how many values were emitted, when the source
  	 * completes.</span>
  	 *
  	 * <img src="./img/count.png" width="100%">
  	 *
  	 * `count` transforms an Observable that emits values into an Observable that
  	 * emits a single value that represents the number of values emitted by the
  	 * source Observable. If the source Observable terminates with an error, `count`
  	 * will pass this error notification along without emitting an value first. If
  	 * the source Observable does not terminate at all, `count` will neither emit
  	 * a value nor terminate. This operator takes an optional `predicate` function
  	 * as argument, in which case the output emission will represent the number of
  	 * source values that matched `true` with the `predicate`.
  	 *
  	 * @example <caption>Counts how many seconds have passed before the first click happened</caption>
  	 * var seconds = Rx.Observable.interval(1000);
  	 * var clicks = Rx.Observable.fromEvent(document, 'click');
  	 * var secondsBeforeClick = seconds.takeUntil(clicks);
  	 * var result = secondsBeforeClick.count();
  	 * result.subscribe(x => console.log(x));
  	 *
  	 * @example <caption>Counts how many odd numbers are there between 1 and 7</caption>
  	 * var numbers = Rx.Observable.range(1, 7);
  	 * var result = numbers.count(i => i % 2 === 1);
  	 * result.subscribe(x => console.log(x));
  	 *
  	 * @see {@link max}
  	 * @see {@link min}
  	 * @see {@link reduce}
  	 *
  	 * @param {function(value: T, i: number, source: Observable<T>): boolean} [predicate] A
  	 * boolean function to select what values are to be counted. It is provided with
  	 * arguments of:
  	 * - `value`: the value from the source Observable.
  	 * - `index`: the (zero-based) "index" of the value from the source Observable.
  	 * - `source`: the source Observable instance itself.
  	 * @return {Observable} An Observable of one number that represents the count as
  	 * described above.
  	 * @method count
  	 * @owner Observable
  	 */
  	function count(predicate) {
  	    return this.lift(new CountOperator(predicate, this));
  	}
  	exports.count = count;
  	var CountOperator = (function () {
  	    function CountOperator(predicate, source) {
  	        this.predicate = predicate;
  	        this.source = source;
  	    }
  	    CountOperator.prototype.call = function (subscriber, source) {
  	        return source._subscribe(new CountSubscriber(subscriber, this.predicate, this.source));
  	    };
  	    return CountOperator;
  	}());
  	/**
  	 * We need this JSDoc comment for affecting ESDoc.
  	 * @ignore
  	 * @extends {Ignored}
  	 */
  	var CountSubscriber = (function (_super) {
  	    __extends(CountSubscriber, _super);
  	    function CountSubscriber(destination, predicate, source) {
  	        _super.call(this, destination);
  	        this.predicate = predicate;
  	        this.source = source;
  	        this.count = 0;
  	        this.index = 0;
  	    }
  	    CountSubscriber.prototype._next = function (value) {
  	        if (this.predicate) {
  	            this._tryPredicate(value);
  	        }
  	        else {
  	            this.count++;
  	        }
  	    };
  	    CountSubscriber.prototype._tryPredicate = function (value) {
  	        var result;
  	        try {
  	            result = this.predicate(value, this.index++, this.source);
  	        }
  	        catch (err) {
  	            this.destination.error(err);
  	            return;
  	        }
  	        if (result) {
  	            this.count++;
  	        }
  	    };
  	    CountSubscriber.prototype._complete = function () {
  	        this.destination.next(this.count);
  	        this.destination.complete();
  	    };
  	    return CountSubscriber;
  	}(Subscriber_1.Subscriber));
  	//# sourceMappingURL=count.js.map
  
  /***/ }