skip.js

"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 = require('../Subscriber');
/**
 * Returns an Observable that skips the first `count` items emitted by the source Observable.
 *
 * <img src="./img/skip.png" width="100%">
 *
 * @param {Number} count - The number of times, items emitted by source Observable should be skipped.
 * @return {Observable} An Observable that skips values emitted by the source Observable.
 *
 * @method skip
 * @owner Observable
 */
function skip(count) {
    return function (source) { return source.lift(new SkipOperator(count)); };
}
exports.skip = skip;
var SkipOperator = (function () {
    function SkipOperator(total) {
        this.total = total;
    }
    SkipOperator.prototype.call = function (subscriber, source) {
        return source.subscribe(new SkipSubscriber(subscriber, this.total));
    };
    return SkipOperator;
}());
/**
 * We need this JSDoc comment for affecting ESDoc.
 * @ignore
 * @extends {Ignored}
 */
var SkipSubscriber = (function (_super) {
    __extends(SkipSubscriber, _super);
    function SkipSubscriber(destination, total) {
        _super.call(this, destination);
        this.total = total;
        this.count = 0;
    }
    SkipSubscriber.prototype._next = function (x) {
        if (++this.count > this.total) {
            this.destination.next(x);
        }
    };
    return SkipSubscriber;
}(Subscriber_1.Subscriber));
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