@reactivex/rxjs

<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <base data-ice="baseUrl" href="../"> <title data-ice="title">Manual</title> <link type="text/css" rel="stylesheet" href="css/style.css"> <link type="text/css" rel="stylesheet" href="css/prettify-tomorrow.css"> <script src="script/prettify/prettify.js"></script> <script src="script/manual.js"></script> <script data-ice="userScript" src="user/script/0-Rx.js"></script> <script data-ice="userScript" src="user/script/1-devtools-welcome.js"></script> <script data-ice="userScript" src="user/script/2-custom-manual-styles.js"></script> <script data-ice="userScript" src="user/script/3-decision-tree-widget.min.js"></script> <script data-ice="userScript" src="user/script/4-theme-toggler.js"></script> <link data-ice="userStyle" rel="stylesheet" href="user/css/0-main.css"> </head> <body class="layout-container manual-root" data-ice="rootContainer"> <header> <a href="./">Home</a> <a href="./manual/index.html" data-ice="manualHeaderLink">Manual</a> <a href="identifiers.html">Reference</a> <a href="source.html">Source</a> <a href="test.html" data-ice="testLink">Test</a> <a data-ice="repoURL" href="https://github.com/ReactiveX/RxJS" class="repo-url-github">Repository</a> <div class="search-box"> <span> <img src="./image/search.png"> <span class="search-input-edge"></span><input class="search-input"><span class="search-input-edge"></span> </span> <ul class="search-result"></ul> </div> </header> <nav class="navigation" data-ice="nav"><div class="manual-toc-root"> <div data-ice="manual" data-toc-name="overview"> <h1 class="manual-toc-title"><a href="manual/overview.html" data-ice="title">Overview</a></h1> <ul class="manual-toc"> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#introduction" data-ice="link">Introduction</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#first-examples" data-ice="link">First examples</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#purity" data-ice="link">Purity</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#flow" data-ice="link">Flow</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#values" data-ice="link">Values</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#observable" data-ice="link">Observable</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#pull-versus-push" data-ice="link">Pull versus Push</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#observables-as-generalizations-of-functions" data-ice="link">Observables as generalizations of functions</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#anatomy-of-an-observable" data-ice="link">Anatomy of an Observable</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#creating-observables" data-ice="link">Creating Observables</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#subscribing-to-observables" data-ice="link">Subscribing to Observables</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#executing-observables" data-ice="link">Executing Observables</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#disposing-observable-executions" data-ice="link">Disposing Observable Executions</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#observer" data-ice="link">Observer</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#subscription" data-ice="link">Subscription</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#subject" data-ice="link">Subject</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#multicasted-observables" data-ice="link">Multicasted Observables</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#reference-counting" data-ice="link">Reference counting</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#behaviorsubject" data-ice="link">BehaviorSubject</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#replaysubject" data-ice="link">ReplaySubject</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#asyncsubject" data-ice="link">AsyncSubject</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#operators" data-ice="link">Operators</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#what-are-operators-" data-ice="link">What are operators?</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#instance-operators-versus-static-operators" data-ice="link">Instance operators versus static operators</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#marble-diagrams" data-ice="link">Marble diagrams</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#choose-an-operator" data-ice="link">Choose an operator</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#categories-of-operators" data-ice="link">Categories of operators</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#creation-operators" data-ice="link">Creation Operators</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#transformation-operators" data-ice="link">Transformation Operators</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#filtering-operators" data-ice="link">Filtering Operators</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#combination-operators" data-ice="link">Combination Operators</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#multicasting-operators" data-ice="link">Multicasting Operators</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#error-handling-operators" data-ice="link">Error Handling Operators</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#utility-operators" data-ice="link">Utility Operators</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#conditional-and-boolean-operators" data-ice="link">Conditional and Boolean Operators</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#mathematical-and-aggregate-operators" data-ice="link">Mathematical and Aggregate Operators</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#scheduler" data-ice="link">Scheduler</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#scheduler-types" data-ice="link">Scheduler Types</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#using-schedulers" data-ice="link">Using Schedulers</a></li> </ul> </div> <div data-ice="manual" data-toc-name="installation"> <h1 class="manual-toc-title"><a href="manual/installation.html" data-ice="title">Installation</a></h1> <ul class="manual-toc"> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/installation.html#es6-via-npm" data-ice="link">ES6 via npm</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/installation.html#commonjs-via-npm" data-ice="link">CommonJS via npm</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/installation.html#commonjs-with-typescript" data-ice="link">CommonJS with TypeScript</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/installation.html#all-module-types-cjs-es6-amd-typescript-via-npm" data-ice="link">All Module Types (CJS/ES6/AMD/TypeScript) via npm</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/installation.html#cdn" data-ice="link">CDN</a></li> </ul> </div> <div data-ice="manual" data-toc-name="tutorial"> <h1 class="manual-toc-title"><a href="manual/tutorial.html" data-ice="title">Tutorial</a></h1> <ul class="manual-toc"> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/tutorial.html#the-basics" data-ice="link">The basics</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/tutorial.html#converting-to-observables" data-ice="link">Converting to observables</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/tutorial.html#creating-observables" data-ice="link">Creating observables</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/tutorial.html#controlling-the-flow" data-ice="link">Controlling the flow</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/tutorial.html#producing-values" data-ice="link">Producing values</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/tutorial.html#creating-applications" data-ice="link">Creating applications</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/tutorial.html#state-stores" data-ice="link">State stores</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/tutorial.html#immutable-js" data-ice="link">Immutable JS</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/tutorial.html#react" data-ice="link">React</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/tutorial.html#external-references" data-ice="link">External References</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/tutorial.html#tutorials" data-ice="link">Tutorials</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/tutorial.html#books" data-ice="link">Books</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/tutorial.html#videos" data-ice="link">Videos</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/tutorial.html#presentations" data-ice="link">Presentations</a></li> </ul> </div> <div data-ice="manual" data-toc-name="reference"> <h1 class="manual-toc-title"><a href="identifiers.html" data-ice="title">Reference</a></h1> <ul class="manual-toc"> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="identifiers.html#variable" data-ice="link">Variable</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="identifiers.html#typedef" data-ice="link">Typedef</a></li> </ul> </div> </div> </nav> <div class="content" data-ice="content"><div class="github-markdown manual-toc-root"> <div data-ice="manual" data-toc-name="overview"> <h1 class="manual-toc-title"><a href="manual/overview.html" data-ice="title">Overview</a></h1> <ul class="manual-toc"> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#introduction" data-ice="link">Introduction</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#first-examples" data-ice="link">First examples</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#purity" data-ice="link">Purity</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#flow" data-ice="link">Flow</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#values" data-ice="link">Values</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#observable" data-ice="link">Observable</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#pull-versus-push" data-ice="link">Pull versus Push</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#observables-as-generalizations-of-functions" data-ice="link">Observables as generalizations of functions</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#anatomy-of-an-observable" data-ice="link">Anatomy of an Observable</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#creating-observables" data-ice="link">Creating Observables</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#subscribing-to-observables" data-ice="link">Subscribing to Observables</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#executing-observables" data-ice="link">Executing Observables</a></li> <li data-ice="manualNav" class="indent-h3"><span class="manual-dot"></span><a href="manual/overview.html#disposing-observable-executions" data-ice="link">Disposing Observable Executions</a></li> <li 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class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#replaysubject" data-ice="link">ReplaySubject</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#asyncsubject" data-ice="link">AsyncSubject</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#operators" data-ice="link">Operators</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#what-are-operators-" data-ice="link">What are operators?</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#instance-operators-versus-static-operators" data-ice="link">Instance operators versus static operators</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#marble-diagrams" data-ice="link">Marble diagrams</a></li> <li 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class="indent-h1"><span class="manual-dot"></span><a href="manual/overview.html#scheduler" data-ice="link">Scheduler</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#scheduler-types" data-ice="link">Scheduler Types</a></li> <li data-ice="manualNav" class="indent-h2"><span class="manual-dot"></span><a href="manual/overview.html#using-schedulers" data-ice="link">Using Schedulers</a></li> </ul> </div> <div data-ice="manual" data-toc-name="installation"> <h1 class="manual-toc-title"><a href="manual/installation.html" data-ice="title">Installation</a></h1> <ul class="manual-toc"> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/installation.html#es6-via-npm" data-ice="link">ES6 via npm</a></li> <li data-ice="manualNav" class="indent-h1"><span class="manual-dot"></span><a href="manual/installation.html#commonjs-via-npm" data-ice="link">CommonJS via npm</a></li> <li data-ice="manualNav" 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