Svelte 4 vs Aurelia 2: A Comprehensive Comparison

This website is powered by ItGalaxy.io

In the world of frontend development, Svelte 4 and Aurelia 2 represent two distinct approaches to building web applications. While Svelte 4 takes a compiler-based approach, Aurelia 2 offers a standards-compliant framework with powerful data binding and templating capabilities. Let’s explore their differences and use cases.

Table of Contents

  1. Core Concepts
  2. Reactivity and State Management
  3. Templating and Components
  4. DOM Manipulation
  5. Event Handling
  6. Component Composition
  7. Form Handling
  8. Lifecycle Management
  9. Performance and Bundle Size
  10. Learning Curve
  11. Conclusion

Core Concepts

Svelte 4 and Aurelia 2 take fundamentally different approaches to building web applications:

  • Svelte 4 is a compiler that transforms components into highly optimized vanilla JavaScript at build time
  • Aurelia 2 is a modern framework that emphasizes standards compliance and convention over configuration

Reactivity and State Management

State Declaration

Both frameworks offer different ways to declare and manage state:

Svelte 4’s Approach

<script>
  let name = "John";
</script>

<h1>Hello {name}</h1>

Svelte’s reactivity is built into the language itself, making state management intuitive.

Aurelia 2’s Approach

<!-- name.html -->
<h1>Hello ${name}</h1>

<!-- name.ts -->
export class NameCustomElement { name = 'John'; }

Aurelia 2 uses TypeScript classes with automatic data binding.

Computed Values

Svelte 4’s Reactive Declarations

<script>
  let count = 10;
  $: doubleCount = count * 2;
</script>

<div>{doubleCount}</div>

Svelte uses the $: label to create reactive statements.

Aurelia 2’s Computed Properties

<!-- double-count.html -->
<div>${doubleCount}</div>

<!-- double-count.ts -->
export class DoubleCountCustomElement { count = 10; get doubleCount() { return
this.count * 2; } }

Aurelia 2 uses getter methods for computed properties.

DOM Manipulation

Conditional Rendering

Svelte 4

{#if light === "red"}
  <span>STOP</span>
{:else if light === "orange"}
  <span>SLOW DOWN</span>
{:else if light === "green"}
  <span>GO</span>
{/if}

Aurelia 2

<p switch.bind="light">
  You must
  <span case="red">STOP</span>
  <span case="orange">SLOW DOWN</span>
  <span case="green">GO</span>
</p>

List Rendering

Svelte 4

<script>
  const colors = ["red", "green", "blue"];
</script>

<ul>
  {#each colors as color (color)}
    <li>{color}</li>
  {/each}
</ul>

Aurelia 2

<ul>
  <li repeat.for="color of colors">${color}</li>
</ul>

Event Handling

Click Events

Svelte 4

<script>
  let count = 0;
  function incrementCount() {
    count++;
  }
</script>

<p>Counter: {count}</p>
<button on:click={incrementCount}>+1</button>

Aurelia 2

<p>Counter: ${count}</p>
<button click.trigger="incrementCount()">+1</button>

Form Handling

Text Input

Svelte 4

<script>
  let text = "Hello World";
</script>

<p>{text}</p>
<input bind:value={text} />

Aurelia 2

<p>${text}</p>
<input value.bind="text" />

Select Input

Svelte 4

<script>
  let selectedColorId = 2;
  const colors = [
    { id: 1, text: "red" },
    { id: 2, text: "blue" },
    { id: 3, text: "green" },
    { id: 4, text: "gray", isDisabled: true },
  ];
</script>

<select bind:value={selectedColorId}>
  {#each colors as color}
    <option value={color.id} disabled={color.isDisabled}>
      {color.text}
    </option>
  {/each}
</select>

Aurelia 2

<select value.bind="selectedColorId">
  <option value="">Select A Color</option>
  <option
    repeat.for="color of colors"
    value.bind="color.id"
    disabled.bind="color.isDisabled"
  >
    ${color.text}
  </option>
</select>

Lifecycle Management

Component Mounting

Svelte 4

<script>
  import { onMount } from "svelte";
  let pageTitle = "";
  onMount(() => {
    pageTitle = document.title;
  });
</script>

<p>Page title: {pageTitle}</p>

Aurelia 2

export class PageTitleCustomElement {
  pageTitle = "";

  attached() {
    this.pageTitle = document.title;
  }
}

Performance and Bundle Size

Svelte 4

  • Zero runtime overhead (compiled to vanilla JS)
  • Smaller bundle size
  • Better initial load performance
  • Highly optimized DOM updates

Aurelia 2

  • Modern build pipeline
  • Tree-shakeable modules
  • Efficient data binding system
  • Standards-based performance optimizations

Learning Curve

Svelte 4

  • Gentle learning curve
  • Familiar template syntax
  • Minimal boilerplate
  • Build setup required

Aurelia 2

  • Moderate learning curve
  • Convention-based approach
  • Strong TypeScript integration
  • Rich ecosystem to learn

Conclusion

Choose Svelte 4 if you:

  • Want optimal runtime performance
  • Prefer writing less boilerplate
  • Need smaller bundle sizes
  • Want a more straightforward learning curve
  • Are building smaller to medium-sized applications

Choose Aurelia 2 if you:

  • Need a full-featured enterprise framework
  • Value standards compliance
  • Want strong TypeScript support
  • Need powerful data binding capabilities
  • Are building large-scale applications

Both frameworks excel in different scenarios:

  • Svelte 4 is perfect for modern, performance-focused applications with minimal boilerplate
  • Aurelia 2 shines in enterprise applications where standards compliance and strong conventions are important

The choice between Svelte 4 and Aurelia 2 often depends on your project’s requirements:

  • Use Svelte 4 for building modern, lightweight applications that need optimal performance
  • Use Aurelia 2 for building large-scale applications that benefit from strong conventions and standards compliance





Decouvrez plus d’Offres de la plateform ItGalaxy.io :

Découvrez notre gamme complète de services et formations pour accélérer votre carrière.

1. Nous contactez

  • Description: Besoin de Formation et des Solutions cloud complètes pour vos applications
  • Links:

2. Infra as a Service

  • Description: Infrastructure cloud évolutive et sécurisée
  • Links:

3. Projets Développeurs

4. Développeurs

5. Formations Complètes

6. Marketplace

7. Blogs

This website is powered by ItGalaxy.io