Modular Programming with JavaScript

Sasan Seydnejad

Jul 2016 · Packt Publishing Ltd

About this ebook

Modularize your JavaScript code for better readability, greater maintainability, and enhanced testabilityAbout This BookDesign and build fully modular, modern JavaScript applications using modular design conceptsImprove code portability, maintainability, and integrity while creating highly scalable and responsive web applicationsImplement your own loosely coupled code blocks that can power highly maintainable and powerful applications in a flexible and highly responsive modular architectureWho This Book Is For

If you are an intermediate to advanced JavaScript developer who has experience of writing JavaScript code but probably not in a modular, portable manner, or you are looking to develop enterprise level JavaScript applications, then this book is for you.

A basic understanding of JavaScript concepts such as OOP, prototypal inheritance, and closures is expected.

What You Will LearnUnderstand the important concepts of OOP in JavaScript, such as scope, objects, inheritance, event delegation, and moreFind out how the module design pattern is used in OOP in JavaScriptDesign and augment modules using both tight augmentation and loose augmentationExtend the capabilities of modules by creating sub-modules using techniques such as cloning and inheritanceMove from isolated module pieces to a cohesive, well integrated application modules that can interact and work together without being tightly coupledSee how SandBoxing is used to create a medium for all the modules to talk to each other as well as to the coreUse the concepts of modular application design to handle dependencies and load modules asynchronouslyBecome familiar with AMD and CommonJS utilities and discover what the future of JavaScript holds for modular programming and architectureIn Detail

Programming in the modular manner is always encouraged for bigger systems—it is easier to achieve scalability with modular programming. Even JavaScript developers are now interested in building programs in a modular pattern. Modules help people who aren't yet familiar with code to find what they are looking for and also makes it easier for programmers to keep things that are related close together.

Designing and implementing applications in a modular manner is highly encouraged and desirable in both simple and enterprise level applications.

This book covers some real-life examples of modules and how we can translate that into our world of programming and application design. After getting an overview of JavaScript object-oriented programming (OOP) concepts and their practical usage, you should be able to write your own object definitions using the module pattern. You will then learn to design and augment modules and will explore the concepts of cloning, inheritance, sub-modules, and code extensibility. You will also learn about SandBoxing, application design, and architecture based on modular design concepts. Become familiar with AMD and CommonJS utilities.

By the end of the book, you will be able to build spectacular modular applications in JavaScript.

Style and approach

This in-depth step-by-step guide will teach you modular programming with JavaScript. Starting from the basics, it will cover advanced modular patterns that can be used in sophisticated JavaScript applications.

About the author

Sasan Seydnejad has more than a decade of experience in web UI and frontend application development using JavaScript, CSS, and HTM in.NET and ASP.NET environments. He specializes in modular SPA design and implementation, responsive mobile-friendly user interfaces, AJAX, client architecture, and UX design, using HTML5, CSS3, and their related technologies. He implements framework-less and framework-based applications using Node.js, MongoDB, Express.js, and AngularJS. He is the holder of the U.S. patent for a user interface for a multi-dimensional data store—US Patent 6907428.