Book Image

Real-World Svelte

By : Tan Li Hau
4.3 (4)
Book Image

Real-World Svelte

4.3 (4)
By: Tan Li Hau

Overview of this book

Svelte has quickly become a popular choice among developers seeking to build fast, responsive, and efficient web applications that are high-performing, scalable, and visually stunning. This book goes beyond the basics to help you thoroughly explore the core concepts that make Svelte stand out among other frameworks. You’ll begin by gaining a clear understanding of lifecycle functions, reusable hooks, and various styling options such as Tailwind CSS and CSS variables. Next, you’ll find out how to effectively manage the state, props, and bindings and explore component patterns for better organization. You’ll also discover how to create patterns using actions, demonstrate custom events, integrate vanilla JS UI libraries, and progressively enhance UI elements. As you advance, you’ll delve into state management with context and stores, implement custom stores, handle complex data, and manage states effectively, along with creating renderless components for specialized functionalities and learning animations with tweened and spring stores. The concluding chapters will help you focus on enhancing UI elements with transitions while covering accessibility considerations. By the end of this book, you’ll be equipped to unlock Svelte's full potential, build exceptional web applications, and deliver performant, responsive, and inclusive user experiences.
Table of Contents (22 chapters)
1
Part 1: Writing Svelte Components
6
Part 2: Actions
10
Part 3: Context and Stores
16
Part 4: Transitions

Choosing between a Svelte context and a Svelte store

The Svelte context and Svelte store are designed for very different use cases.

Here’s a recap: the Svelte context helps pass data from a parent component to all descendent components, while a Svelte store helps make data reactive across multiple Svelte components.

Although both the Svelte context and Svelte store are meant to pass data across Svelte components, they are designed for different use cases. So, choosing when to use a Svelte context and Svelte store is never an either-or situation.

You can use either a Svelte context, a Svelte store, or both to pass the same data across Svelte components.

To decide which one to use, I’ve come up with a 2x2 decision matrix:

Figure 8.2: A decision matrix for choosing a Svelte store, a Svelte context, or both

Figure 8.2: A decision matrix for choosing a Svelte store, a Svelte context, or both

In this 2x2 decision matrix, there are two dimensions: local-global and static-reactive.

Depending on the kind of data you...