Book Image

Svelte 3 Up and Running

By : Alessandro Segala
Book Image

Svelte 3 Up and Running

By: Alessandro Segala

Overview of this book

Svelte is a modern JavaScript framework used to build static web apps that are fast and lean, as well as being fun for developers to use. This book is a concise and practical introduction for those who are new to the Svelte framework which will have you up to speed with building apps quickly, and teach you how to use Svelte 3 to build apps that offer a great app user experience (UX). The book starts with an introduction to Svelte 3, before showing you how to set up your first complete application with the framework. Filled with code samples, each chapter will show you how to write components using the Svelte template syntax and the application programming interfaces (APIs) of the Svelte framework. As you advance, you’ll go from scaffolding your project and tool setup all the way through to production with DevOps principles such as automated testing, continuous integration, and continuous delivery (CI/CD). Finally, you’ll deploy your application in the cloud with object storage services and a content delivery network (CDN) for best-in-class performance for your users. By the end of this book, you’ll have learned how to build and deploy apps using Svelte 3 to solve real-world problems and deliver impressive results.
Table of Contents (9 chapters)

Why Svelte?

To understand what's special about Svelte, we need to look at how it differs from other popular libraries and frameworks, such as Angular, React, and Vue.

Svelte versus the other frameworks

Svelte's goal is to help developers write less code, letting them build components using familiar HTML, CSS, and JavaScript. Just like React ones, Svelte apps are truly reactive, so you do not need to manipulate the DOM directly (as you would if you were using jQuery, for example): the view is automatically updated on every change in the state.

However, Svelte's main intuition, and its biggest difference from all the other popular JavaScript frameworks, is that it moves most of the processing to a compilation stage. That is, rather than relying on large and complex libraries loaded at run time, Svelte is built around a compiler that processes your application's code before emitting a small, fast, and optimized code bundle.

Another major difference from...