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

Managing Props and State

In the world of web development, managing data effectively is crucial. Whether it’s the information that flows between components or the internal state of a component, proper data management is the backbone of a functional and responsive web application.

In this chapter, we will delve into the core concepts of managing props and state within a Svelte application. First, we’ll clarify what props and states in Svelte are, laying the groundwork for understanding more advanced topics. We then explore the concept of bindings, a feature in Svelte for keeping state and element values or component props in sync.

We’ll then explore data flow within components, highlighting the differences between one-way data flow and two-way data flow and why they matter. Moving on, we’ll discuss how to derive state from props using Svelte’s reactive declarations. To conclude, we’ll offer tips for managing complex derived states and explain...