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

Understanding user preference with prefers-reduced-motion

Most operating systems offer accessibility settings that allow users to disable animation effects. For instance, in Windows 11, you can navigate to Settings | Accessibility | Visual Effects | Animation Effects and uncheck the Animation Effects option to turn off animations.

igure 15.1: The Animation effects option in Window 11

In web applications, you can use the prefers-reduced-motion CSS media query to determine whether a user has activated a setting on their device to reduce or eliminate non-essential motion.

Here is an example of how to use the prefers-reduced-motion CSS media query:

@media (prefers-reduced-motion: reduce) {
  div {
    /* Removes animation */
    animation: none;
  }
}

In the preceding code snippet, if a user has indicated a preference for reduced motion, we set the CSS animation property to none to remove animation from the <div...