JavaScript Development

CoffeeScript is JavaScript done right. In the first book on this exciting new language, CoffeeScript guru Trevor Burnham shows you how to hold onto all the power and flexibility of JavaScript while writing clearer, cleaner, and safer code. You'll start with the basics of CoffeeScript, as Trevor gets you quickly - and entertainingly - up to speed on functions, collections, and classes. You'll learn how CoffeeScript cleans up JavaScript syntax yet maintains full compatibility with all your existing JavaScript code. And you'll dive deep, writing a full multiplayer online game in CoffeeScript, step by step, adding features to the game as you learn new features of CoffeeScript. You'll test your newfound skills with exercises in every chapter that help you extend your CoffeeScript knowledge Trevor takes you beyond the language to show you how to integrate CoffeeScript into the whole JavaScript development environment. You'll discover how to exploit all the power of the JQuery library in CoffeeScript. And you'll take your CoffeeScript apps server-side with Node.js. CoffeeScript civilizes JavaScript, letting you write clean, readable, powerful JavaScript code. This book lets you start doing it today. You'll need CoffeeScript 1.0 and Node.js.

For JavaScript developers working on increasingly large and complex projects, effective automated testing is crucial to success. Test-Driven JavaScript Development is a complete, best-practice guide to agile JavaScript testing and quality assurance with the test-driven development (TDD) methodology. Leading agile JavaScript developer Christian Johansen covers all aspects of applying state-of-the-art automated testing in JavaScript environments, walking readers through the entire development lifecycle, from project launch to application deployment, and beyond. Using real-life examples driven by unit tests, Johansen shows how to use TDD to gain greater confidence in your code base, so you can fearlessly refactor and build more robust, maintainable, and reliable JavaScript code at lower cost. Throughout, he addresses crucial issues ranging from code design to performance optimization, offering realistic solutions for developers, QA specialists, and testers. Coverage includes Understanding automated testing and TDD Building effective automated testing workflows Testing code for both browsers and servers (using Node.js) Using TDD to build cleaner APIs, better modularized code, and more robust software Writing testable code Using test stubs and mocks to test units in isolation Continuously improving code through refactoring Walking through the construction and automated testing of fully functional softwareThe accompanying Web site, tddjs.com, contains all of the books code listings and additional resources.

JavaScript is everywhere, both as a pure language and in popular libraries like Angular, jQuery and Knockout, but users of modern object-oriented languages like Java and C# often find JavaScript frustrating to use and hard to extend to large-scale applications. TypeScript is an innovative open source language from Microsoft that combines powerful language features and enhanced tooling support with the key attractions of JavaScript as a flexible, dynamic language that can run in any browser and on any operating system. Pro TypeScript tells you everything you need to know about this exciting new language and how to use it in your applications. Starting with an introduction to the language and its features, the book takes you through some of the major features of TypeScript in depth, from working with the type system through object-orientation to understanding the runtime and the TypeScript compiler. The book then covers some of the factors you need to consider when running a TypeScript application in the browser, including interacting with the DOM, making asynchronous requests, and working with useful browser APIs, followed by a demonstration of server-side TypeScript using the popular Node.js framework. Because TypeScript compiles to plain JavaScript, exception handling, memory management and garbage collection can differ depending on where you run your program, so these topics get a chapter to themselves. You’ll also find out how to include popular JavaScript frameworks in your applications, so you can combine the benefits of TypeScript with some of the best JavaScript code that’s already out there waiting to be used. The final chapter gives an overview of automated testing for TypeScript applications. Pro TypeScript offers a balanced and practical guide to a language that will transform your experience of JavaScript development.

* Object-Oriented JavaScript* Documenting JavaScript Code* Writing High-Quality JavaScript* Boosting JavaScript Performance* Design Patterns: Creational* Design Patterns: Structural* Design Patterns: Behavioral* Design Patterns: Architectural * Managing Code File Dependencies* Mobile JavaScript Development * Building Games with Canvas API* Using WebRTC for Video Chat * Using Client-Side Templates * The Node.js Application Platform * Build Tools and Automation * Browser Developer Tools

A development environment that allows programming at any time or place is required for supporting programming education. Currently, smartphones are more popular than personal computers. Therefore, if a development environment for smartphones is available then students can learn to program in a normal room, with no personal computer, or on the way to school. A browser-based development environment can be realized using JavaScript as a learning language. In this paper, we describe the design, implementation, and evaluation of a JavaScript development environment. Our development environment is suitable for smartphones and is easy to use even with a small screen.