Book Image

JavaScript for .NET Developers

By : Ovais Mehboob Ahmed Khan
Book Image

JavaScript for .NET Developers

By: Ovais Mehboob Ahmed Khan

Overview of this book

If you want to improve responsiveness or the UX in your ASP.NET applications, JavaScript can be a life saver. In an age where server-side operations have shifted to the client, being able to handle JavaScript with confidence and fluency is vital for ASP.NET developers. There’s no point trying to fight it, so start learning with this book. Make sure your projects exceed user expectations. Begin by getting stuck into the basics of JavaScript, and explore the language in the context of ASP.NET Core. You’ll then find out how to put the principles into practice, as you learn how to develop a basic ASP.NET application using Angular 2 and TypeScript. You’ll also develop essential skills required to develop responsive apps, with a little help from AJAX, ensuring that you’re building projects that can be easily accessed across different devices. With guidance on Node.js and some neat techniques to test and debug a range of JavaScript libraries in Visual Studio, you’ll soon be well on your way to combining JavaScript with ASP.NET in a way that’s capable of meeting the challenges of modern web development head-on.
Table of Contents (17 chapters)
JavaScript for .NET Developers
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Exploring WinJS core fundamentals


Before using WinJS library in any of the projects, it is best to know the core concepts that help us to write quality programs and use the best of what the library offers.

Classes and namespaces

Through WinJS we can create classes and namespace with some special syntax. This is provided in the WinJS library to handle complex scenarios. As we know, classes and namespaces are the features of ECMAScript 6, but unfortunately none of the browsers have proper implementation yet. However, with WinJS we can define classes and namespaces and it's a useful option to use them where needed.

Defining classes in WinJS

Classes in WinJS can be defined through the WinJS.Class.define() method. Here is the sample code of a class in WinJS:

<script>
        var Logger = WinJS.Class.define(function (value) {
            //constructor
            console.log("Constructor is executing, value passed is: " + value );
        }     
        );
   //Initializing Logger class object...