Dart By Example

Design and develop modern web applications with Google's bold and productive language through engaging example projects About This Book Full of engaging and varied example projects to equip you to build your own web applications Learn the Dart language and key libraries Productively create fast and reliable web applications Who This Book Is For If you are a front- or back-end web developer who is looking to build complex full-featured web applications without the quagmire of disconnected JavaScript frameworks, this book is a practical walkthrough of substantial applications that will have you and your team coding Dart in a productive manner. This book will give you a compiled, optional typed, scalable environment to rapidly develop applications. As Dart was designed to be familiar, any developer with even a small amount of knowledge of JavaScript or another programming language will be at home with the language immediately and will be coding quickly. What You Will Learn Master the core Dart language, type system, and key development tools Connect to existing web services, process JSON, and create your own framework for the data display Run and debug the Dart server and web applications and compile them in JavaScript Handle form data and encryption Build and deploy server applications on the major OSes and implement the REST API Work with PostgreSQL—an industry standard relational database system Create robust applications with unit tests, documentation, and diagnostic logging Develop command-line applications, and explore the key data structures and libraries In Detail Designed to create next generation apps, Google's Dart offers a much more robust framework and also supersedes JavaScript in several aspects. Familiar yet innovative, compact yet scalable, it blows away the accumulated JavaScript legacy limitations. Dart was designed for great tool-ability and developer productivity, allowing you to create better application faster than before. Google chose it for their billion dollar advertising business and you have its power for your projects too. This book will introduce you the Dart language starting from its conception to its current form, and where it headed is through engaging substantial practical projects. You will be taken through building typical applications and exploring the exciting new technologies of HTML5. With example code projects such as a live data monitoring and viewing system, a blogging system, a slides presentation application, and more, then this book will walk you through step by step through building data-driven web applications with ease and speed. Style and approach A varied collection of compelling practical Dart projects that are developed progressively with full explanations of concepts and implementation. Each project introduces features of the language and environment, demonstrating how Dart can be used in rich structured web applications.

Summary Dart in Action introduces Google's Dart language and provides techniques and examples showing how to use it as a viable replacement for Java and JavaScript in browser-based desktop and mobile applications. It begins with a rapid overview of Dart language and tools, including features like interacting with the browser, optional typing, classes, libraries, and concurrency with isolates. After you master the core concepts, you'll move on to running Dart on the server and creating single page HTML5 web applications. About the Technology Dart is a web programming language developed by Google. It has modern OO features, just like Java or C#, while keeping JavaScript's dynamic and functional characteristics. Dart applications are "transpiled" to JavaScript, and they run natively in Dart-enabled browsers. With production-quality libraries and tools, Dart operates on both the client and the server for a consistent development process. About this Book Dart in Action introduces the Dart language and teaches you to use it in browser-based, desktop, and mobile applications. Not just a language tutorial, this book gets quickly into the nitty-gritty of using Dart. Most questions that pop up while you're reading are answered on the spot! OO newbies will appreciate the gentle pace in the early chapters. Later chapters take a test-first approach and encourage you to try Dart hands-on. To benefit from this book you'll need experience with HTML and JavaScript?a Java or C# background is helpful but not required. Purchase of the print book comes with an offer of a free PDF, ePub, and Kindle eBook from Manning. Also available is all code from the book. What's Inside Dart from the ground up Numerous code samples and diagrams Creating single-page web apps Transitioning from Java, C#, or JavaScript Running Dart in the browser and on the server About the Author Chris Buckett builds enterprise-scale web applications. He runs Dartwatch.com and is an active contributor to the dartlang list. "Includes numerous examples of core language features as well as more advanced HTML5 features."-;From the Foreword by Seth Ladd, Developer Advocate, Google Table of Contents PART 1 INTRODUCING DART Hello Dart "Hello World" with Dart tools Building and testing your own Dart app PART 2 CORE DART Functional first-class functions and closures Understanding libraries and privacy Constructing classes and interfaces Extending classes and interfaces Collections of richer classes Asynchronous programming with callbacks and futures PART 3 CLIENT-SIDE DART APPS Building a Dart web app Navigating offline data Communicating with other systems and languages PART 4 SERVER-SIDE DART Server interaction with files and HTTP Sending, syncing, and storing data Concurrency with isolates

Dart is a class-based, object-oriented language that simplifies the development of structured modern apps, scales from small scripts to large applications, and can be compiled to JavaScript for use in any modern browser. In this rigorous but readable introductory text, Dart specification lead Gilad Bracha fully explains both the language and the ideas that have shaped it. The Dart Programming Language offers an authoritative description of Dart for programmers, computer science students, and other well-qualified professionals. The text illuminates key programming constructs with significant examples, focusing on principles of the language, such as optional typing and pure object-orientation. Bracha thoroughly explains reflection in Dart, showing how it is evolving into a form that programmers can easily apply without creating excessively large programs. He also shares valuable insights into Dart’s actor-style model for concurrency and asynchronous programming. Throughout, he covers both language semantics and the rationale for key features, helping you understand not just what Dart does, but why it works the way it does. You will learn about Dart’s object model, in which everything is an object, even numbers and Boolean values How Dart programs are organized into modular libraries How Dart functions are structured, stored in variables, passed as parameters, and returned as results Dart’s innovative approach to optional typing How Dart handles expressions and statements How to use Dart’s implementation of reflection to introspect on libraries, classes, functions, and objects Isolates and other Dart features that support concurrency and distribution Register your product at informit.com/register for convenient access to downloads, updates, and corrections as they become available.

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.

Mastering Dart by Projects is a step-by-step guide that aims to give you hands-on knowledge about programming in Dart using an example-based approach. If you want to become a web developer, or perhaps you already are a web developer but you want to add Dart to your tool belt, then this book is for you. This book assumes that you have at least some knowledge of HTML and how web applications work. Some previous programming experience, preferably in a modern language like C#, Java, Python, Ruby, or JavaScript, will also give you a head start. You can also work with Dart on your preferred platform

Make Dart Your Programming Language of Choice There are many programming languages you can start learning today. But not many are as modern, easy to learn, object-oriented and scalable as Dart. Plus, combined with Flutter, Dart allows you to build native iOS, Android, web and desktop applications with a single code base. Dart Apprentice will teach you all the basic concepts you need to master this language. Follow along with the clearly and thoroughly explained concepts and you'll be building Dart applications in a breeze. Who This Book Is For Dart Apprentice is aimed at anyone interested in learning this new and modern programming language. If you're a beginner and want to start programming, this is great place to start. If you're an experienced programmer interested in learning Dart, here you'll find all the concepts you need to know. In either case, following along with this book, you'll be comfortable writing your own Dart programs in less time than you think. Topics covered in Dart Apprentice Expressions, Variables and Constants: The building blocks of the language Types and Operations: Static vs. dynamic typing, inference and strings Control Flow: Booleans, enums, switches, if statements and loops Functions: Named and anonymous functions, parameters and arrow syntax Classes: Objects, constructors, methods and properties Nullability: Null and how to handle it Collections: Lists, sets and maps Advanced classes: Inheritance, abstract classes, interfaces and mixins Asynchronous Programming: Concurrency, futures, streams and isolates One thing you can count on: after reading this book, you'll be prepared to build your own applications using Dart. About the Tutorial Team The Tutorial Team is a group of app developers and authors who write tutorials at the popular website raywenderlich.com. We take pride in making sure each tutorial we write holds to the highest standards of quality. We want our tutorials to be well written, easy to follow, and fun. If you've enjoyed the tutorials we've written in the past, you're in for a treat. The chapters we've written for this book are some of our best yet - and this book contains detailed technical knowledge explained in a way you simply won't be able to find anywhere else.

A step-by-step guide to learning Flutter and Dart 2 for creating Android and iOS mobile applications Key FeaturesGet up to speed with the basics of Dart programming and delve into Flutter developmentUnderstand native SDK and third-party libraries for building Android and iOS applications using FlutterPackage and deploy your Flutter apps to achieve native-like performanceBook Description Google Flutter is a cross-platform mobile framework that makes it easy to write high-performance apps for Android and iOS. This book will help you get to grips with the basics of the Flutter framework and the Dart programming language. Starting from setting up your development environment, you’ll learn to design the UI and add user input functions. You'll explore the navigator widget to manage app routes and learn to add transitions between screens. The book will even guide you through developing your own plugin and later, you’ll discover how to structure good plugin code. Using the Google Places API, you'll also understand how to display a map in the app and add markers and interactions to it. You’ll then learn to improve the user experience with features such as map integrations, platform-specific code with native languages, and personalized animation options for designing intuitive UIs. The book follows a practical approach and gives you access to all relevant code files hosted at github.com/PacktPublishing/Flutter-for-Beginners. This will help you access a variety of examples and prepare your own bug-free apps, ready to deploy on the App Store and Google Play Store. By the end of this book, you’ll be well-versed with Dart programming and have the skills to develop your own mobile apps or build a career as a Dart and Flutter app developer. What you will learnUnderstand the fundamentals of the Dart programming languageExplore the core concepts of the Flutter UI and how it compiles for multiple platformsDevelop Flutter plugins and widgets and understand how to structure plugin code appropriatelyStyle your Android and iOS apps with widgets and learn the difference between stateful and stateless widgetsAdd animation to your UI using Flutter's AnimatedBuilder componentIntegrate your native code into your Flutter codebase for native app performanceWho this book is for This book is for developers looking to learn Google's revolutionary framework Flutter from scratch. No prior knowledge of Flutter or Dart is required; however, basic knowledge of any programming language will be helpful.

This book is targeted at expert programmers in JavaScript who want to learn Dart quickly. Some previous experience with OOP programming in other languages and a good knowledge of JavaScript are assumed.