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CodeSignal

Svelte: Reactivity & State Management

via CodeSignal

Overview

This course explores Svelte's reactivity and state management for optimized applications. Learn to use $effect for side effects, $derive for computed values, and Svelte's reactive components. Master form state management with $state and implement debounce techniques for dynamic user input. Develop skills to handle complex state updates while maintaining clean, maintainable code.

Syllabus

  • Unit 1: Reactive Side Effects with `$effect`
    • Track Reactive Boolean Changes
    • Build a Reactive Counter with $effect
    • Track Timer Start Count
    • Customizable Countdown Timer
  • Unit 2: Reactive Built-ins: `Date`, `URL`, and `URLSearchParams` in Svelte
    • Reactive Clock with SvelteDate
    • # OUTPUT Reactive URL Query Management
    • Track Time with Reactive URL
    • Dynamic URL Parameter with Date
    • Remove URL Query Parameter
  • Unit 3: Managing Form State with `$state` in Svelte
    • Reactive Form State Basics
    • Extend and Submit Reactive Form
    • Add Radio Buttons to Form
    • Add Newsletter Subscription Checkbox
    • Add Age Field to Form
  • Unit 4: Debouncing with `$effect` in Svelte
    • Set Up a Simple Timeout
    • Implement Debounced Search Input
    • Add Typing Status Indicator
    • Dynamic Debounce Duration Control
    • Toggle Debouncing Dynamically
  • Unit 5: Reactive Classes with Getters and Setters in Svelte
    • Build a Reactive Counter Class
    • Add Reactive Double Celsius Getter
    • Increment Celsius with Reactive Methods
    • Add Decrement Method to Converter
    • Add Maximum Celsius Constraint

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