74 lines
2.7 KiB
JavaScript
74 lines
2.7 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || function (d, b) {
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for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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var Subscriber_1 = require('../Subscriber');
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/**
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* Returns an Observable that emits whether or not every item of the source satisfies the condition specified.
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*
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* @example <caption>A simple example emitting true if all elements are less than 5, false otherwise</caption>
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* Observable.of(1, 2, 3, 4, 5, 6)
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* .every(x => x < 5)
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* .subscribe(x => console.log(x)); // -> false
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*
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* @param {function} predicate A function for determining if an item meets a specified condition.
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* @param {any} [thisArg] Optional object to use for `this` in the callback.
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* @return {Observable} An Observable of booleans that determines if all items of the source Observable meet the condition specified.
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* @method every
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* @owner Observable
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*/
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function every(predicate, thisArg) {
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return function (source) { return source.lift(new EveryOperator(predicate, thisArg, source)); };
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}
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exports.every = every;
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var EveryOperator = (function () {
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function EveryOperator(predicate, thisArg, source) {
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this.predicate = predicate;
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this.thisArg = thisArg;
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this.source = source;
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}
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EveryOperator.prototype.call = function (observer, source) {
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return source.subscribe(new EverySubscriber(observer, this.predicate, this.thisArg, this.source));
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};
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return EveryOperator;
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}());
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/**
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* We need this JSDoc comment for affecting ESDoc.
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* @ignore
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* @extends {Ignored}
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*/
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var EverySubscriber = (function (_super) {
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__extends(EverySubscriber, _super);
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function EverySubscriber(destination, predicate, thisArg, source) {
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_super.call(this, destination);
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this.predicate = predicate;
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this.thisArg = thisArg;
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this.source = source;
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this.index = 0;
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this.thisArg = thisArg || this;
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}
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EverySubscriber.prototype.notifyComplete = function (everyValueMatch) {
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this.destination.next(everyValueMatch);
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this.destination.complete();
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};
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EverySubscriber.prototype._next = function (value) {
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var result = false;
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try {
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result = this.predicate.call(this.thisArg, value, this.index++, this.source);
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}
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catch (err) {
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this.destination.error(err);
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return;
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}
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if (!result) {
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this.notifyComplete(false);
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}
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};
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EverySubscriber.prototype._complete = function () {
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this.notifyComplete(true);
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};
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return EverySubscriber;
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}(Subscriber_1.Subscriber));
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//# sourceMappingURL=every.js.map
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