Dart · Up and Running by Walrath, Kathy -- Read -- Imperial Library of Trantor

Index

Dart: Up and Running Foreword Preface

Conventions Used in This Book Using Code Examples Safari® Books Online How to Contact Us Acknowledgments

1. Quick Start

Why Google Created Dart A Quick Look at the Dart Language What’s Cool About Dart Up and Running

Step 1: Download and Install the Software Step 2: Launch the Editor Step 3: Create and Run an App Step 4: Open and Run a Sample What Next?

Become a power user Send feedback!

2. A Tour of the Dart Language

A Basic Dart Program Important Concepts

Runtime Modes

Variables

Default Value Optional Types Final and Const

Built-in Types

Numbers Strings Booleans Lists Maps

Functions

Optional Parameters

Optional named parameters Optional positional parameters

Functions as First-Class Objects Lexical Closures Return Values

Operators

Arithmetic Operators Equality and Relational Operators Type Test Operators Assignment Operators Logical Operators Bitwise and Shift Operators Other Operators

Control Flow Statements

If and Else For Loops While and Do-While Break and Continue Switch and Case Assert

Exceptions

Throw Catch Finally

Classes

Instance Variables Constructors

Default constructors Constructors aren’t inherited Named constructors Invoking a non-default superclass constructor Initializer list Redirecting constructors Constant constructors Factory constructors

Methods

Instance methods Getters and setters Abstract methods Operators

Abstract Classes Implicit Interfaces Extending a Class Class Variables and Methods

Static variables Static methods

Generics

Why Use Generics? Using Collection Literals Using Constructors Generic Collections and the Types they Contain

Libraries and Visibility

Using Libraries

Specifying a library prefix Importing only part of a library

Implementing Libraries

Using multiple files Declaring a library Associating a file with a library Re-exporting libraries

Isolates Typedefs Comments

Single-Line Comments Multi-Line Comments Documentation Comments

Summary

3. A Tour of the Dart Libraries

dart:core - Numbers, Collections, Strings, and More

Numbers Strings and Regular Expressions

Searching inside a string Extracting data from a string Converting to uppercase or lowercase Trimming and empty strings Replacing part of a string Building a string Regular expressions More information

Collections

Lists Sets Common collection methods Maps

Dates and Times Utility Classes

Comparing objects Implementing map keys Iteration

Asynchronous Programming

Chaining multiple asynchronous methods Waiting for multiple futures More information

Exceptions

dart:math - Math and Random

Trigonometry Maximum and Mininum Math Constants Random Numbers More Information

dart:html - Browser-Based Apps

Manipulating the DOM

Finding elements Manipulating elements Creating elements Adding, replacing, and removing nodes Manipulating CSS styles Handling events

Using HTTP Resources with HttpRequest

Getting data from the server Sending data to the server

Sending and Receiving Real-Time Data with WebSockets

Sending data Receiving data Handling WebSocket events

dart:isolate - Concurrency with Isolates

Isolate Concepts Using Isolates

Spawning isolates Sending messages Sending any type of object Receiving messages Receiving replies Keeping the root isolate alive

More Information

dart:io - I/O for Command-Line Apps

Files and Directories

Reading a file as text Reading a file as binary Handling errors Streaming file contents Writing file contents Listing files in a directory Other common functionality

HTTP Clients and Servers

HTTP server HTTP client

dart:json - Encoding and Decoding Objects

Decoding JSON Encoding JSON

dart:uri - Manipulating URIs

Encoding and Decoding Fully Qualified URIs Encoding and Decoding URI Components Parsing URIs Building URIs

dart:utf - Strings and Unicode

Decoding UTF-8 Characters Encoding Strings to UTF-8 Bytes Other Functionality

dart:crypto - Hash Codes and More

Generating Cryptographic Hashes Generating Message Authentication Codes Generating Base64 Strings

Summary

4. Tools

pub: The Dart Package Manager

Creating a Pubspec Installing Packages Importing Libraries from Packages More Information

Dart Editor

Viewing Samples Managing the Files View

Adding apps Removing apps

Creating Apps Editing Apps

Using autocomplete Browsing APIs

Finding where an API is declared Outlining a file’s contents Finding where an API is used

Refactoring Searching

Running Apps

Specifying launch configurations Running in production mode Specifying a browser

Debugging Apps Compiling to JavaScript Other Features

Generating documentation with dartdoc Customizing Dart Editor Keyboard alternatives

Dartium: Chromium with the Dart VM

Downloading and Installing the Browser Launching the Browser Filing Bugs Linking to Dart Source Detecting Dart Support Launching from the Command Line

dart2js: The Dart-to-JavaScript Compiler

Basic Usage Options

dart: The Standalone VM

Basic Usage Enabling Checked Mode Additional Options

Summary

5. Walkthrough: Dart Chat

How to Run Dart Chat How Dart Chat Works The Client’s HTML Code The Client’s Dart Code

Finding DOM Elements Wrapping DOM Elements Updating DOM Elements Encoding and Decoding Messages Communicating with WebSockets

The Server’s Code

Serving Static Files Managing WebSocket Connections Logging Messages to a File

What Next?

About the Authors Copyright

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