Sign In Start Free Trial

Book Overview & Buying
Table Of Contents

Mastering DART

By : Akopkokhyants

4.6 (5)

Mastering DART

4.6 (5)

By: Akopkokhyants

Overview of this book

If you are an application developer who has experience with Dart and want to develop reusable and robust code in Dart, then this book is for you. You are expected to have a basic knowledge of core elements and applications.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Beyond Dart's Basics

1. Beyond Dart's Basics

Modularity and a namespace

Functions and closures in different scopes

Classes and mixins

Methods and operators

Summary

2. Advanced Techniques and Reflection

2. Advanced Techniques and Reflection

Generics

Errors versus exceptions

Annotations

Reflection

Summary

3. Object Creation

3. Object Creation

Creating an object

Summary

4. Asynchronous Programming

4. Asynchronous Programming

Call-stack architectures versus event-driven architectures

Future

Zones

Isolates

Summary

5. The Stream Framework

5. The Stream Framework

Why you should use streams

Single-subscription streams versus broadcast streams

An overview of the stream framework API

Summary

6. The Collection Framework

6. The Collection Framework

A Dart collection framework

Ordering of elements

Collections and generics

The collection class hierarchy

The Iterable interface

The Iterable interface

BidirectionalIterator

The collection classes

Unmodifiable collections

Choosing the right collection

Summary

7. Dart and JavaScript Interoperation

7. Dart and JavaScript Interoperation

Interoperation at a glance

The dart:js library

Type conversion

JsObject and instantiation

JsFunction and the this keyword

Dart with jQuery

Summary

8. Internalization and Localization

8. Internalization and Localization

The key principles

The Intl library

Internationalizing your web application

Extracting messages

Using Google Translator Toolkit

Using translated messages

Summary

9. Client-to-server Communication

9. Client-to-server Communication

Communication at a glance

Hypertext Transfer Protocol

AJAX polling request

AJAX long polling request

WebSocket

Summary

10. Advanced Storage

10. Advanced Storage

Cookies

Web Storage

Web SQL

IndexedDB

Summary

11. Supporting Other HTML5 Features

11. Supporting Other HTML5 Features

The notification APIs

The native drag-and-drop APIs

The geolocation APIs

Canvas

Summary

12. Security Aspects

12. Security Aspects

Web security

Securing a server

Securing a client

Security best practices

Summary

Index

Index

Web SQL

Web SQL was introduced by Apple and is based on a free database SQLite. It will be discontinued very soon, and I intend to add it here only to show you how it could be used and how we can migrate to other advanced techniques without glitches. In the following code, we created a new shopping_cart_web_sql project as a copy of the project from the Web Storage section and added WebSQLStorageManager into the StorageManager class:

abstract class StorageManager {
  factory StorageManager() {
    if (WebSQLStorageManager.supported) {
      return new WebSQLStorageManager();
    } else if (WebStorageManager.supported) {
      return new WebStorageManager();
    } else {
      return new CookieStorageManager();
    }
  }
  
  Future<String> getItem(key);
  Future setItem(key, value);
  Future removeItem(key);
}

First of all, check whether the web browser supports Web SQL and instantiate it if successful. You should specify the version and initial size of the database to be used. The...

Visually different images

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

Mastering DART

Search

Your notes and bookmarks