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-<div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Dart: Up and Running</th></tr><tr><td width="20%" align="left"> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="foreword.html">Next</a></td></tr></table><hr></div><div class="book"><div class="titlepage"><div><div><h1 class="title"><a name="idm244203374416"></a>Dart: Up and Running</h1></div><div><div class="author"><h3 class="author"><span class="firstname">Kathy</span> <span class="surname">Walrath</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Seth</span> <span class="surname">Ladd</span></h3></div></div><div><div class="othercredit"><h3 class="othercredit"><span class="firstname">Christopher</span> <span class="surname">Hearse</span></h3></div></div><div><div class="othercredit"><h3 class="othercredit"><span class="firstname">David</span> <span class="surname">Futato</span></h3></div></div><div><div class="othercredit"><h3 class="othercredit"><span class="firstname">Rebecca</span> <span class="surname">Demarest</span></h3></div></div><div><div class="othercredit"><h3 class="othercredit"><span class="firstname">Randy</span> <span class="surname">Comer</span></h3></div></div><div><p class="copyright">Copyright © 2013 Kathy Walrath, Seth Ladd</p></div><div><div class="legalnotice"><a name="idm244198162016"></a><p>Printed in the United States of America.</p></div></div><div><div class="legalnotice"><a name="idm244198161120"></a><p>[LSI]</p></div></div><div><div class="legalnotice"><a name="idm244198160224"></a><p>O’Reilly books may be purchased for educational, business, or sales
+<div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Dart: Up and Running</th></tr><tr><td width="20%" align="left"> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="foreword.html">Next</a></td></tr></table><hr></div><div class="book"><div class="titlepage"><div><div><h1 class="title"><a name="idm121394709424"></a>Dart: Up and Running</h1></div><div><div class="author"><h3 class="author"><span class="firstname">Kathy</span> <span class="surname">Walrath</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Seth</span> <span class="surname">Ladd</span></h3></div></div><div><div class="othercredit"><h3 class="othercredit"><span class="firstname">Christopher</span> <span class="surname">Hearse</span></h3></div></div><div><div class="othercredit"><h3 class="othercredit"><span class="firstname">David</span> <span class="surname">Futato</span></h3></div></div><div><div class="othercredit"><h3 class="othercredit"><span class="firstname">Rebecca</span> <span class="surname">Demarest</span></h3></div></div><div><div class="othercredit"><h3 class="othercredit"><span class="firstname">Randy</span> <span class="surname">Comer</span></h3></div></div><div><p class="copyright">Copyright © 2013 Kathy Walrath, Seth Ladd</p></div><div><div class="legalnotice"><a name="idm121374157056"></a><p>Printed in the United States of America.</p></div></div><div><div class="legalnotice"><a name="idm121374155952"></a><p>[LSI]</p></div></div><div><div class="legalnotice"><a name="idm121374154880"></a><p>O’Reilly books may be purchased for educational, business, or sales
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+    department: 800-998-9938 or <code class="email">&lt;<a class="email" href="mailto:corporate@oreilly.com">corporate@oreilly.com</a>&gt;</code>.</p></div></div><div><div class="legalnotice"><a name="idm121374152288"></a><p>Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo
     are registered trademarks of O’Reilly Media, Inc. <span class="emphasis"><em>Dart: Up and
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     (https://github.com/dart-lang/dart-up-and-running-book) under the Creative
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     License (http://creativecommons.org/licenses/by-nc-nd/3.0/us/).</p><p>Many of the designations used by manufacturers and sellers to
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     omissions, or for damages resulting from the use of the information
-    contained herein.</p></div></div><div><div class="legalnotice"><a name="legalnotice-perfect"></a><p></p></div></div><div><div lang="" class="revhistory"><table style="border-style:solid; width:100%;" summary="Revision History"><tr><th align="left" valign="top" colspan="2"><b>Revision History</b></th></tr><tr><td align="left"></td><td align="left">2012-10-24</td></tr><tr><td align="left" colspan="2">First release</td></tr><tr><td align="left"></td><td align="left">2013-03-29</td></tr><tr><td align="left" colspan="2">Second release</td></tr></table></div></div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="preface"><a href="foreword.html">Foreword</a></span></dt><dt><span class="preface"><a href="preface.html">Preface</a></span></dt><dd><dl><dt><span class="sect1"><a href="preface.html#preface-conventions">Conventions Used in This Book</a></span></dt><dt><span class="sect1"><a href="preface.html#preface-examples">Using Code Examples</a></span></dt><dt><span class="sect1"><a href="preface.html#preface-safari">Safari® Books Online</a></span></dt><dt><span class="sect1"><a href="preface.html#preface-contact">How to Contact Us</a></span></dt><dt><span class="sect1"><a href="preface.html#preface-updates">Content Updates</a></span></dt><dd><dl><dt><span class="sect2"><a href="preface.html#preface-updates-v3">Changes in the Third Printing: February 19, 2014</a></span></dt><dt><span class="sect2"><a href="preface.html#preface-updates-v2">Changes in the Second Printing: March 29, 2013</a></span></dt></dl></dd><dt><span class="sect1"><a href="preface.html#preface-acknowledgments">Acknowledgments</a></span></dt></dl></dd><dt><span class="chapter"><a href="ch01.html">1. Quick Start</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch01.html#ch01-why-dart">Why Google Created Dart</a></span></dt><dt><span class="sect1"><a href="ch01.html#ch01-quick-look">A Quick Look at the Dart Language</a></span></dt><dt><span class="sect1"><a href="ch01.html#ch01-whats-cool">What’s Cool About Dart</a></span></dt><dt><span class="sect1"><a href="ch01.html#ch01-editor">Up and Running</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch01.html#ch01-editor-download">Step 1: Download and Install the Software</a></span></dt><dt><span class="sect2"><a href="ch01.html#ch01-editor-launch">Step 2: Launch the Editor</a></span></dt><dt><span class="sect2"><a href="ch01.html#ch01-editor-sample">Step 3: Open and Run a Demo</a></span></dt><dt><span class="sect2"><a href="ch01.html#ch01-editor-code">Step 4: Create and Run an App</a></span></dt><dt><span class="sect2"><a href="ch01.html#ch01-editor-next">What Next?</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="ch02.html">2. A Tour of the Dart Language</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch02.html#main-print">A Basic Dart Program</a></span></dt><dt><span class="sect1"><a href="ch02.html#ch02-concepts">Important Concepts</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-keywords">Keywords</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-runtime-modes">Runtime Modes</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#variables">Variables</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#variables-default-value">Default Value</a></span></dt><dt><span class="sect2"><a href="ch02.html#variables-optional-types">Optional Types</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-final-const">Final and Const</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#built-in-types">Built-in Types</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#numbers">Numbers</a></span></dt><dt><span class="sect2"><a href="ch02.html#strings">Strings</a></span></dt><dt><span class="sect2"><a href="ch02.html#booleans">Booleans</a></span></dt><dt><span class="sect2"><a href="ch02.html#lists">Lists</a></span></dt><dt><span class="sect2"><a href="ch02.html#maps">Maps</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-symbols">Symbols</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#functions">Functions</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#functions-optional-parameters">Optional Parameters</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-main">The main() Function</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-functions-first-class">Functions as First-Class Objects</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-lexical-scope">Lexical Scope</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-functions-lexical-closures">Lexical Closures</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-function-equality">Testing Functions for Equality</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-functions-return-values">Return Values</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#operators">Operators</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#op-arithmetic">Arithmetic Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-equality">Equality and Relational Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-op-type-test">Type Test Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-assign">Assignment Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-logical">Logical Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-bit">Bitwise and Shift Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-other">Other Operators</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#control-flow-statements">Control Flow Statements</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#if-else">If and Else</a></span></dt><dt><span class="sect2"><a href="ch02.html#for-loops">For Loops</a></span></dt><dt><span class="sect2"><a href="ch02.html#while">While and Do-While</a></span></dt><dt><span class="sect2"><a href="ch02.html#break">Break and Continue</a></span></dt><dt><span class="sect2"><a href="ch02.html#switch">Switch and Case</a></span></dt><dt><span class="sect2"><a href="ch02.html#assert">Assert</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#exceptions">Exceptions</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-exceptions-throw">Throw</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-exceptions-catch">Catch</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-exceptions-finally">Finally</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#classes">Classes</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-instance-variables">Instance Variables</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-constructors">Constructors</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-methods">Methods</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-class-abstract">Abstract Classes</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-implicit-interfaces">Implicit Interfaces</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-class-extend">Extending a Class</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-mixins">Adding Features to a Class: Mixins</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-class-vars-and-methods">Class Variables and Methods</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#generics">Generics</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-generics-why">Why Use Generics?</a></span></dt><dt><span class="sect2"><a href="ch02.html#generics-literals">Using Collection Literals</a></span></dt><dt><span class="sect2"><a href="ch02.html#generics-constructors">Using Parameterized Types with Constructors</a></span></dt><dt><span class="sect2"><a href="ch02.html#generics-collections">Generic Collections and the Types they Contain</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#libraries">Libraries and Visibility</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#libraries-import">Using Libraries</a></span></dt><dt><span class="sect2"><a href="ch02.html#libraries-implementing">Implementing Libraries</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#isolates">Isolates</a></span></dt><dt><span class="sect1"><a href="ch02.html#typedefs">Typedefs</a></span></dt><dt><span class="sect1"><a href="ch02.html#ch02-metadata">Metadata</a></span></dt><dt><span class="sect1"><a href="ch02.html#comments">Comments</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-comments-single-line">Single-Line Comments</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-comments-multi-line">Multi-Line Comments</a></span></dt><dt><span class="sect2"><a href="ch02.html#comments-doc">Documentation Comments</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#ch02-summary">Summary</a></span></dt></dl></dd><dt><span class="chapter"><a href="ch03.html">3. A Tour of the Dart Libraries</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch03.html#ch03-dartcore---strings-collections-and-more">dart:core - Numbers, Collections, Strings, and More</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-numbers">Numbers</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-strings-and-regular-expressions">Strings and Regular Expressions</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-collections">Collections</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-uri">URIs</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-dates-and-times">Dates and Times</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-utility-interfaces">Utility Classes</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-exceptions">Exceptions</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-asynchronous-programming">dart:async - Asynchronous Programming</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-futures">Future</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-streams">Stream</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-9">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-dart-math">dart:math - Math and Random</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-trigonometry">Trigonometry</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-maximum-and-minimum">Maximum and Minimum</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-math-constants">Math Constants</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-random-numbers">Random Numbers</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-7">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-dart-html-using-html5-apis">dart:html - Browser-Based Apps</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-manipulating-the-dom">Manipulating the DOM</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-httprequest">Using HTTP Resources with HttpRequest</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-websockets">Sending and Receiving Real-Time Data with WebSockets</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-html">More information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-dartio---file-and-socket-io-for-command-line-apps">dart:io - I/O for Command-Line Apps</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-files-and-directories">Files and Directories</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-io-http">HTTP Clients and Servers</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-io">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-dart-convert">dart:convert - Decoding and Encoding JSON, UTF-8, and more</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-json">Decoding and Encoding JSON</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-utf">Decoding and Encoding UTF-8 Characters</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-utf-other">Other Functionality</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-mirrors">dart:mirrors - Reflection</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-mirrors-symbols">Symbols</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-mirrors-introspection">Introspection</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-mirrors-invocation">Invocation</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-mirrors">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-summary">Summary</a></span></dt></dl></dd><dt><span class="chapter"><a href="ch04.html">4. Tools</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch04-tools-pub.html">pub: The Dart Package Manager</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04-tools-pub.html#ch04-tools-pub-pubspec">Creating a Pubspec</a></span></dt><dt><span class="sect2"><a href="ch04-tools-pub.html#ch04-tools-pub-install">Installing Packages</a></span></dt><dt><span class="sect2"><a href="ch04-tools-pub.html#ch04-tools-pub-import">Importing Libraries from Packages</a></span></dt><dt><span class="sect2"><a href="ch04-tools-pub.html#ch04-tools-pub-more-options">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch04-tools-editor.html">Dart Editor</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-view-samples">Viewing Samples</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-apps">Managing the Files View</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-create-app">Creating Apps</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-edit">Editing Apps</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-run">Running Apps</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-debug">Debugging Apps</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-dart2js">Compiling to JavaScript</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-more">Other Features</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch04-tools-dartium.html">Dartium: Chromium with the Dart VM</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-download">Downloading and Installing the Browser</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-launch">Launching the Browser</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-bug">Filing Bugs</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-linking">Linking to Dart Source</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-detect">Detecting Dart Support</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-command">Launching from the Command Line</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch04-tools-dart2js.html">dart2js: The Dart-to-JavaScript Compiler</a></span></dt><dt><span class="sect1"><a href="ch04-tools-dart-vm.html">dart: The Standalone VM</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04-tools-dart-vm.html#ch04-tools-dart-vm-basic-usage">Basic Usage</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dart-vm.html#ch04-tools-dart-vm-options">Options</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dart-vm.html#ch04-tools-dart-vm-type-checks">Enabling Checked Mode</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch04-tools-dart_analyzer.html">dartanalyzer: The Static Analyzer</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04-tools-dart_analyzer.html#ch04-tools-dart_analyzer-basic-usage">Basic Usage</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dart_analyzer.html#ch04-tools-dart_analyzer-options">Options</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch04-summary.html">Summary</a></span></dt></dl></dd><dt><span class="chapter"><a href="ch05.html">5. Walkthrough: Dartiverse Search</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch05.html#ch05-how-to-run">How to Run Dartiverse Search</a></span></dt><dt><span class="sect1"><a href="ch05.html#ch05-how-it-works">How Dartiverse Search Works</a></span></dt><dt><span class="sect1"><a href="ch05.html#ch05-client-html">The Client's HTML Code</a></span></dt><dt><span class="sect1"><a href="ch05.html#ch05-client-dart">The Client's Dart Code</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-find-elements">Finding DOM Elements</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-handle-events">Handling Events</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-properties">Getting and Setting Properties</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-add-elements">Adding DOM Elements</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-json">Encoding and Decoding Messages</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-web-sockets">Communicating with WebSockets</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch05.html#ch05-server">The Server's Code</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch05.html#ch05-server-static">Serving Static Files</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-server-web-socket">Managing WebSocket Connections</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-server-web-apis">Using Web APIs</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-server-library">Implementing a Library</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-server-logging">Logging Messages</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch05.html#ch05-what-next">What Next?</a></span></dt></dl></dd></dl></div><div class="list-of-figures"><p><b>List of Figures</b></p><dl><dt>1.1. <a href="ch01.html#BrowserChart">Browser speed (V8 benchmark suite v7; higher numbers are
+    contained herein.</p></div></div><div><div class="legalnotice"><a name="legalnotice-perfect"></a><p></p></div></div><div><div lang="" class="revhistory"><table style="border-style:solid; width:100%;" summary="Revision History"><tr><th align="left" valign="top" colspan="2"><b>Revision History</b></th></tr><tr><td align="left"></td><td align="left">2012-10-24</td></tr><tr><td align="left" colspan="2">First release</td></tr><tr><td align="left"></td><td align="left">2013-03-29</td></tr><tr><td align="left" colspan="2">Second release</td></tr></table></div></div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="preface"><a href="foreword.html">Foreword</a></span></dt><dt><span class="preface"><a href="preface.html">Preface</a></span></dt><dd><dl><dt><span class="sect1"><a href="preface.html#preface-conventions">Conventions Used in This Book</a></span></dt><dt><span class="sect1"><a href="preface.html#preface-examples">Using Code Examples</a></span></dt><dt><span class="sect1"><a href="preface.html#preface-safari">Safari® Books Online</a></span></dt><dt><span class="sect1"><a href="preface.html#preface-contact">How to Contact Us</a></span></dt><dt><span class="sect1"><a href="preface.html#preface-updates">Content Updates</a></span></dt><dd><dl><dt><span class="sect2"><a href="preface.html#preface-updates-v3">Changes in the Third Printing: February 19, 2014</a></span></dt><dt><span class="sect2"><a href="preface.html#preface-updates-v2">Changes in the Second Printing: March 29, 2013</a></span></dt></dl></dd><dt><span class="sect1"><a href="preface.html#preface-acknowledgments">Acknowledgments</a></span></dt></dl></dd><dt><span class="chapter"><a href="ch01.html">1. Quick Start</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch01.html#ch01-why-dart">Why Google Created Dart</a></span></dt><dt><span class="sect1"><a href="ch01.html#ch01-quick-look">A Quick Look at the Dart Language</a></span></dt><dt><span class="sect1"><a href="ch01.html#ch01-whats-cool">What’s Cool About Dart</a></span></dt><dt><span class="sect1"><a href="ch01.html#ch01-editor">Up and Running</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch01.html#ch01-editor-download">Step 1: Download and Install the Software</a></span></dt><dt><span class="sect2"><a href="ch01.html#ch01-editor-launch">Step 2: Launch the Editor</a></span></dt><dt><span class="sect2"><a href="ch01.html#ch01-editor-sample">Step 3: Open and Run a Demo</a></span></dt><dt><span class="sect2"><a href="ch01.html#ch01-editor-code">Step 4: Create and Run an App</a></span></dt><dt><span class="sect2"><a href="ch01.html#ch01-editor-next">What Next?</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="ch02.html">2. A Tour of the Dart Language</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch02.html#main-print">A Basic Dart Program</a></span></dt><dt><span class="sect1"><a href="ch02.html#ch02-concepts">Important Concepts</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-keywords">Keywords</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-runtime-modes">Runtime Modes</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#variables">Variables</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#variables-default-value">Default Value</a></span></dt><dt><span class="sect2"><a href="ch02.html#variables-optional-types">Optional Types</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-final-const">Final and Const</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#built-in-types">Built-in Types</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#numbers">Numbers</a></span></dt><dt><span class="sect2"><a href="ch02.html#strings">Strings</a></span></dt><dt><span class="sect2"><a href="ch02.html#booleans">Booleans</a></span></dt><dt><span class="sect2"><a href="ch02.html#lists">Lists</a></span></dt><dt><span class="sect2"><a href="ch02.html#maps">Maps</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-symbols">Symbols</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#functions">Functions</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#functions-optional-parameters">Optional Parameters</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-main">The main() Function</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-functions-first-class">Functions as First-Class Objects</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-lexical-scope">Lexical Scope</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-functions-lexical-closures">Lexical Closures</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-function-equality">Testing Functions for Equality</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-functions-return-values">Return Values</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#operators">Operators</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#op-arithmetic">Arithmetic Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-equality">Equality and Relational Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-op-type-test">Type Test Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-assign">Assignment Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-logical">Logical Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-bit">Bitwise and Shift Operators</a></span></dt><dt><span class="sect2"><a href="ch02.html#op-other">Other Operators</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#control-flow-statements">Control Flow Statements</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#if-else">If and Else</a></span></dt><dt><span class="sect2"><a href="ch02.html#for-loops">For Loops</a></span></dt><dt><span class="sect2"><a href="ch02.html#while">While and Do-While</a></span></dt><dt><span class="sect2"><a href="ch02.html#break">Break and Continue</a></span></dt><dt><span class="sect2"><a href="ch02.html#switch">Switch and Case</a></span></dt><dt><span class="sect2"><a href="ch02.html#assert">Assert</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#exceptions">Exceptions</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-exceptions-throw">Throw</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-exceptions-catch">Catch</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-exceptions-finally">Finally</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#classes">Classes</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-instance-variables">Instance Variables</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-constructors">Constructors</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-methods">Methods</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-class-abstract">Abstract Classes</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-implicit-interfaces">Implicit Interfaces</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-class-extend">Extending a Class</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-mixins">Adding Features to a Class: Mixins</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-class-vars-and-methods">Class Variables and Methods</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#generics">Generics</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-generics-why">Why Use Generics?</a></span></dt><dt><span class="sect2"><a href="ch02.html#generics-literals">Using Collection Literals</a></span></dt><dt><span class="sect2"><a href="ch02.html#generics-constructors">Using Parameterized Types with Constructors</a></span></dt><dt><span class="sect2"><a href="ch02.html#generics-collections">Generic Collections and the Types they Contain</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#libraries">Libraries and Visibility</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#libraries-import">Using Libraries</a></span></dt><dt><span class="sect2"><a href="ch02.html#libraries-implementing">Implementing Libraries</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#isolates">Isolates</a></span></dt><dt><span class="sect1"><a href="ch02.html#typedefs">Typedefs</a></span></dt><dt><span class="sect1"><a href="ch02.html#ch02-metadata">Metadata</a></span></dt><dt><span class="sect1"><a href="ch02.html#comments">Comments</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02.html#ch02-comments-single-line">Single-Line Comments</a></span></dt><dt><span class="sect2"><a href="ch02.html#ch02-comments-multi-line">Multi-Line Comments</a></span></dt><dt><span class="sect2"><a href="ch02.html#comments-doc">Documentation Comments</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02.html#ch02-summary">Summary</a></span></dt></dl></dd><dt><span class="chapter"><a href="ch03.html">3. A Tour of the Dart Libraries</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch03.html#ch03-dartcore---strings-collections-and-more">dart:core - Numbers, Collections, Strings, and More</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-numbers">Numbers</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-strings-and-regular-expressions">Strings and Regular Expressions</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-collections">Collections</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-uri">URIs</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-dates-and-times">Dates and Times</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-utility-interfaces">Utility Classes</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-exceptions">Exceptions</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-asynchronous-programming">dart:async - Asynchronous Programming</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-futures">Future</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-streams">Stream</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-9">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-dart-math">dart:math - Math and Random</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-trigonometry">Trigonometry</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-maximum-and-minimum">Maximum and Minimum</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-math-constants">Math Constants</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-random-numbers">Random Numbers</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-7">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-dart-html-using-html5-apis">dart:html - Browser-Based Apps</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-manipulating-the-dom">Manipulating the DOM</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-httprequest">Using HTTP Resources with HttpRequest</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-websockets">Sending and Receiving Real-Time Data with WebSockets</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-html">More information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-dartio---file-and-socket-io-for-command-line-apps">dart:io - I/O for Command-Line Apps</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-files-and-directories">Files and Directories</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-io-http">HTTP Clients and Servers</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-io">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-dart-convert">dart:convert - Decoding and Encoding JSON, UTF-8, and more</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-json">Decoding and Encoding JSON</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-utf">Decoding and Encoding UTF-8 Characters</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-utf-other">Other Functionality</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-mirrors">dart:mirrors - Reflection</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch03.html#ch03-mirrors-symbols">Symbols</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-mirrors-introspection">Introspection</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-mirrors-invocation">Invocation</a></span></dt><dt><span class="sect2"><a href="ch03.html#ch03-more-information-mirrors">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch03.html#ch03-summary">Summary</a></span></dt></dl></dd><dt><span class="chapter"><a href="ch04.html">4. Tools</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch04-tools-pub.html">pub: The Dart Package Manager</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04-tools-pub.html#ch04-tools-pub-pubspec">Creating a Pubspec</a></span></dt><dt><span class="sect2"><a href="ch04-tools-pub.html#ch04-tools-pub-install">Installing Packages</a></span></dt><dt><span class="sect2"><a href="ch04-tools-pub.html#ch04-tools-pub-import">Importing Libraries from Packages</a></span></dt><dt><span class="sect2"><a href="ch04-tools-pub.html#ch04-tools-pub-more-options">More Information</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch04-tools-editor.html">Dart Editor</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-view-samples">Viewing Samples</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-apps">Managing the Files View</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-create-app">Creating Apps</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-edit">Editing Apps</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-run">Running Apps</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-debug">Debugging Apps</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-dart2js">Compiling to JavaScript</a></span></dt><dt><span class="sect2"><a href="ch04-tools-editor.html#ch04-editor-more">Other Features</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch04-tools-dartium.html">Dartium: Chromium with the Dart VM</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-download">Downloading and Installing the Browser</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-launch">Launching the Browser</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-bug">Filing Bugs</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-linking">Linking to Dart Source</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-detect">Detecting Dart Support</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dartium.html#ch04-dartium-command">Launching from the Command Line</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch04-tools-dart2js.html">dart2js: The Dart-to-JavaScript Compiler</a></span></dt><dt><span class="sect1"><a href="ch04-tools-dart-vm.html">dart: The Standalone VM</a></span></dt><dt><span class="sect1"><a href="ch04-tools-dart_analyzer.html">dartanalyzer: The Static Analyzer</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04-tools-dart_analyzer.html#ch04-tools-dart_analyzer-basic-usage">Basic Usage</a></span></dt><dt><span class="sect2"><a href="ch04-tools-dart_analyzer.html#ch04-tools-dart_analyzer-options">Options</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch04-summary.html">Summary</a></span></dt></dl></dd><dt><span class="chapter"><a href="ch05.html">5. Walkthrough: Dartiverse Search</a></span></dt><dd><dl><dt><span class="sect1"><a href="ch05.html#ch05-how-to-run">How to Run Dartiverse Search</a></span></dt><dt><span class="sect1"><a href="ch05.html#ch05-how-it-works">How Dartiverse Search Works</a></span></dt><dt><span class="sect1"><a href="ch05.html#ch05-client-html">The Client's HTML Code</a></span></dt><dt><span class="sect1"><a href="ch05.html#ch05-client-dart">The Client's Dart Code</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-find-elements">Finding DOM Elements</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-handle-events">Handling Events</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-properties">Getting and Setting Properties</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-add-elements">Adding DOM Elements</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-json">Encoding and Decoding Messages</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-client-dart-web-sockets">Communicating with WebSockets</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch05.html#ch05-server">The Server's Code</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch05.html#ch05-server-static">Serving Static Files</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-server-web-socket">Managing WebSocket Connections</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-server-web-apis">Using Web APIs</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-server-library">Implementing a Library</a></span></dt><dt><span class="sect2"><a href="ch05.html#ch05-server-logging">Logging Messages</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch05.html#ch05-what-next">What Next?</a></span></dt></dl></dd></dl></div><div class="list-of-figures"><p><b>List of Figures</b></p><dl><dt>1.1. <a href="ch01.html#BrowserChart">Browser speed (V8 benchmark suite v7; higher numbers are
       better)</a></dt><dt>1.2. <a href="ch01.html#DartEditor-initial">Dart Editor and its Welcome page</a></dt><dt>1.3. <a href="ch01.html#sunflower">The Sunflower sample running in Dartium</a></dt><dt>1.4. <a href="ch01.html#DartEditor-newapp">Create command-line or web apps with Dart Editor</a></dt><dt>1.5. <a href="ch01.html#DartEditor-helloworld">Dart Editor displaying a new app’s files</a></dt><dt>4.1. <a href="ch04-tools-editor.html#DartEditor-helloweb">A new app, pre-filled with basic, runnable code</a></dt><dt>4.2. <a href="ch04-tools-editor.html#helloweb-dotcomplete">Autocomplete suggestions</a></dt><dt>4.3. <a href="ch04-tools-editor.html#sunflower-outline">The Outline panel for the Sunflower sample</a></dt><dt>4.4. <a href="ch04-tools-editor.html#production-mode">To run in production mode, unselect checked mode</a></dt><dt>4.5. <a href="ch04-tools-editor.html#debugger">Using Dart Editor to debug the Sunflower sample app</a></dt><dt>4.6. <a href="ch04-tools-editor.html#key-assist">Help &gt; Key Assist</a></dt><dt>5.1. <a href="ch05.html#DartiverseScreenshot">The client app UI</a></dt><dt>5.2. <a href="ch05.html#DartiverseCommunication">Communication in Dartiverse Search</a></dt></dl></div><div class="list-of-tables"><p><b>List of Tables</b></p><dl><dt>2.1. <a href="ch02.html#keyword_table">Dart keywords</a></dt><dt>2.2. <a href="ch02.html#operator_table">Operators and their precedence</a></dt><dt>2.3. <a href="ch02.html#arithmetic_operator_table">Arithmetic operators</a></dt><dt>2.4. <a href="ch02.html#pfix_operator_table">Increment and decrement operators</a></dt><dt>2.5. <a href="ch02.html#equality_operator_table">Equality and relational operators</a></dt><dt>2.6. <a href="ch02.html#type_test_operator_table">Type test operators</a></dt><dt>2.7. <a href="ch02.html#assignment_operator_table">Assignment operators</a></dt><dt>2.8. <a href="ch02.html#logical_operator_table">Logical operators</a></dt><dt>2.9. <a href="ch02.html#bit_operator_table">Bitwise and shift operators</a></dt><dt>2.10. <a href="ch02.html#other_operator_table">Other operators</a></dt><dt>2.11. <a href="ch02.html#overridden_operator_table">Operators that can be overridden</a></dt><dt>4.1. <a href="ch04-tools-dart_analyzer.html#ch04-dartanalyzer-exit">Exit codes for dartanalyzer</a></dt></dl></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="foreword.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"> </td><td width="20%" align="center"> </td><td width="40%" align="right" valign="top"> Foreword</td></tr></table></div>