Dart Essentials

Credits

About the Author

About the Reviewers

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Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Downloading the color images of this book

Errata

Piracy

Questions

1. Getting Started with Dart

What is Dart?

Why choose Dart?

Installing the Dart SDK

Dart Editor

Writing a greeting for all Dartisans

pubspec.yaml

index.html

The main() function

Running and debugging code in Dartium

Compiling Dart to JavaScript

The Dart language tour

The static checker

Variables

Built-in types

Functions and parameters

Class properties

Class inheritance and abstract classes

Constructors

Exceptions

Using static types

Summary

2. Practical Dart

Optimizing DOM tree manipulations

The documentation search app

The Future-Based API

Using async and await keywords

Async

Await

Creating Ajax requests in Dart

Dart packages

Writing the fuzzy search algorithm

Handling HTML elements

Combining Dart and JavaScript

Using Dart in JavaScript

Using JavaScript in Dart

Dart MythBusters

Summary

3. The Power of HTML5 with Dart

Creating the Reddit Read Later app

Fetching the JSONP data

IndexedDB

Initializing IndexedDB

Fetching stored records

Saving records

Deleting records

Indices

Polishing the application

LocalStorage versus IndexedDB

What about WebSQL?

Music visualizer

Other noteworthy APIs and libraries

Typed lists for fast numeric computing

vector_math

SIMD

WebGL

three.dart

StageXL

Box2D and play_phaser

Isolates and Web Workers

Summary

4. Developing a Mobile App with Dart

300 ms tap delay

Basics of CSS3 transformations

Axes

Hello world in 3D

Nesting 3D transformed elements

A 3D bookshelf with DeviceOrientation events

Position and distance tracker with the GeoLocation API and Google Maps API

Drawing into 2D canvas using onTouch events

Summary

5. Web Components and polymer.dart

Web Components

Shadow DOM

Custom Elements

Template

HTML Imports

The Web Components polyfill for older browsers

Basic HTML Import

Using Shadow DOM

Using Custom Elements

Polymer.dart

Minimalistic custom element in polymer.dart

One-way data binding

Loops and conditions in templates

Two-way data binding

Polymer core and paper elements

A quick look at core-list

What's next?

Summary

6. AngularDart

Installing AngularDart

To-do list with AngularDart

Scope

Extending the to-do list

Model

View

Component

Finishing TodoListComponent

Data bindings

A book component in AngularDart

What is Angular 2.0?

Why is Angular 2.0 not written in Dart?

Performance tips for AngularDart

Avoiding nesting ng-repeat directives

Using track by for ng-repeat

Avoiding excess formatter usage

Not everything needs to be in Angular

Summary

7. Server-side Applications with Dart

The standalone Dart VM

Parsing CLI arguments with the args package

Writing a chat app with the WebSockets server

Client-side WebSockets

Listening to Unix signals and basic I/O operations

Running the server as a background process

Enumerated types

Typedefs

Using MySQL as a storage

Writing an HTTP server with the route package

Using Dart as a full-stack language

Using Apache as a proxy for the Dart HTTP server

Using nginx as a proxy for the Dart HTTP server

Executing Dart as CGI and Apache mod_dart

Summary

8. Testing and Profiling the Dart Code

Testing strategies for web apps

Unit testing

Asynchronous tests

Test groups

Running all tests

Operator overloading and mixins

Operator overloading

Mixins

Testing AngularDart apps

Profiling with the Observatory tool

Summary

9. Writing Native Extensions for the Standalone Dart VM

The structure of native extensions

Writing a minimal native extension

Writing a native fuzzy search implementation

Optimizing our C/C++ code

Multithreading with Dart Isolates

Writing bindings for the exiv2 library

Distributing native extensions

Summary

Index

Copyright © 2015 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: May 2015

Production reference: 1190515

Published by Packt Publishing Ltd.

Livery Place

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Birmingham B3 2PB, UK.

ISBN 978-1-78398-960-7

www.packtpub.com

Author

Martin Sikora

Reviewers

Lamoriniere Cedric

Rokesh Jankie

Hans Van den Keybus

Frederik Leonhardt

Marko Vuksanovic

Commissioning Editor

Taron Pereira

Acquisition Editor

Shaon Basu

Content Development Editor

Akashdeep Kundu

Technical Editor

Mrunal M. Chavan

Copy Editor

Stuti Srivastava

Project Coordinator

Milton Dsouza

Proofreaders

Stephen Copestake

Safis Editing

Indexer

Hemangini Bari

Graphics

Sheetal Aute

Production Coordinator

Shantanu N. Zagade

Cover Work

Shantanu N. Zagade

Martin Sikora has been programming professionally since 2006 for companies such as Miton CZ and Symbio Digital in various languages, mostly PHP. Since 2012, he's been freelancing, working on projects in Python, PHP, Dart, Objective-C, and AngularJS. He's a Zend Certified Engineer and was a member of the winning team at Google Dart Hackathon 2012 in Prague.

Lamoriniere Cedric is a software engineer and a graduate from a French engineering school, who mostly uses C++ during his day job.

His taste for innovation has led him to try out a considerable amount of various web frameworks, technologies, and languages.

Among these languages, he has taken a strong interest in the Dart language for its ease of use and efficiency. It allows developers to get things done in a timely manner.

Rokesh Jankie graduated in 1998 with a master's degree in computer science from Leiden University, the Nether...