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

Writing a custom JavaScript transition using the tick function

The custom transition we will attempt to write in this section is a flipboard transition. The transition emulates the mechanics of vintage airport departure boards. During this transition, each letter of the text flips, cycling through characters until it finally lands on the correct one. The transition ends when all the letters have settled into the right character.

The following diagram illustrates how the flipboard transition works to reveal the phrase Hello Svelte, with the vertical axis representing the flow of time from top to bottom:

igure 14.8: Flipboard transition visualized

At the onset of the transition, letters begin to appear from left to right, starting as a dash (-) and then flipping through random characters before settling on the correct one. This flipping motion continues from left to right until all letters have aligned with their corresponding characters, unveiling the intended phrase.

The...