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Blazor WebAssembly by Example

Blazor WebAssembly by Example

By : Toi B. Wright
4.5 (12)
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Blazor WebAssembly by Example

Blazor WebAssembly by Example

4.5 (12)
By: Toi B. Wright

Overview of this book

Blazor WebAssembly makes it possible to run C# code on the browser instead of having to use JavaScript, and does not rely on plugins or add-ons. The only technical requirement for using Blazor WebAssembly is a browser that supports WebAssembly, which, as of today, all modern browsers do. Blazor WebAssembly by Example is a project-based guide for learning how to build single-page web applications using the Blazor WebAssembly framework. This book emphasizes the practical over the theoretical by providing detailed step-by-step instructions for each project. You'll start by building simple standalone web applications and progress to developing more advanced hosted web applications with SQL Server backends. Each project covers a different aspect of the Blazor WebAssembly ecosystem, such as Razor components, JavaScript interop, event handling, application state, and dependency injection. The book is designed in such a way that you can complete the projects in any order. By the end of this book, you will have experience building a wide variety of single-page web applications with .NET, Blazor WebAssembly, and C#.
Table of Contents (11 chapters)
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Summary

You should now be able to create a local storage service by using JS interop to invoke JavaScript functions from your Blazor WebAssembly application.

In this chapter, we explained why you still need to use JavaScript and how to use the IJSRuntime abstraction to invoke JavaScript functions from .NET, both synchronously and asynchronously. Conversely, we explained how to invoke .NET methods from JavaScript. Finally, we explained how to store data in the browser by using localStorage.

After that, we used the Empty Blazor App project template to create a new project. We added a couple of JavaScript functions to read and write localStorage. Then, we added a class to invoke those JavaScript functions.

In the last part of the chapter, we tested our local storage service.

One of the biggest benefits of using Blazor WebAssembly is that all of the code runs on the browser. This means that a web app built using Blazor WebAssembly can run offline. In the next chapter, we will...

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