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

Rendering different HTML element or component types

In any dynamic application, there comes a time when you need even more flexibility than what static components or elements offer. What if you don’t know the type of element or component you’ll need to render until runtime?

Let’s imagine that you’re building a form generator, and the type of form field – whether it’s <Input>, <Checkbox>, or <Select> – is determined by dynamic data. How could you switch between these components seamlessly, especially when they share the same set of props?

One straightforward approach is to use Svelte’s {#if} blocks to conditionally render the component you need. Here is an example code snippet:

<script>
  import Input from './Input.svelte';
  import Checkbox from './Checkbox.svelte';
  import Select from './Select.svelte';
  let type = "input...