Svelte 4 vs Aurelia 1: A Comprehensive Comparison

This website is powered by ItGalaxy.io

In the world of frontend development, Svelte 4 and Aurelia 1 represent two different approaches to building web applications. While Svelte 4 takes a compiler-based approach, Aurelia 1 offers a powerful convention-based framework with strong data binding 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 1 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 1 is a convention-based framework that emphasizes standards compliance and powerful data binding

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 1’s Approach

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

Aurelia 1 uses a more traditional template-based approach with string interpolation.

State Updates

Svelte 4

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

<h1>Hello {name}</h1>

Aurelia 1

<template>
  <h1>Hello ${name}</h1>
</template>

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 1’s Computed Properties

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

Templating and Components

Basic Templates

Svelte 4

<h1>Hello world</h1>

Aurelia 1

<template>
  <h1>Hello world</h1>
</template>

CSS Styling

Svelte 4

<h1 class="title">I am red</h1>
<button style="font-size: 10rem;">I am a button</button>

<style>
  .title {
    color: red;
  }
</style>

Aurelia 1

/* css-style.css */
.title {
  color: red;
}

DOM Manipulation

List Rendering

Svelte 4

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

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

Aurelia 1

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

Conditional Rendering

Svelte 4

<script>
  const TRAFFIC_LIGHTS = ["red", "orange", "green"];
  let lightIndex = 0;
  $: light = TRAFFIC_LIGHTS[lightIndex];

  function nextLight() {
    lightIndex = (lightIndex + 1) % TRAFFIC_LIGHTS.length;
  }
</script>

<button on:click={nextLight}>Next light</button>
<p>Light is: {light}</p>
<p>
  You must
  {#if light === "red"}
    <span>STOP</span>
  {:else if light === "orange"}
    <span>SLOW DOWN</span>
  {:else if light === "green"}
    <span>GO</span>
  {/if}
</p>

Aurelia 1

<template>
  <button click.trigger="nextLight()">Next light</button>
  <p>Light is: ${light}</p>
  <p>
    You must
    <span if.bind="light === 'red'">STOP</span>
    <span if.bind="light === 'orange'">SLOW DOWN</span>
    <span if.bind="light === 'green'">GO</span>
  </p>
</template>

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 1

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

Form Handling

Text Input

Svelte 4

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

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

Aurelia 1

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

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 1

<template>
  <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>
</template>

Component Composition

Props

Svelte 4

<script>
  import UserProfile from "./UserProfile.svelte";
</script>

<UserProfile
  name="John"
  age={20}
  favouriteColors={["green", "blue", "red"]}
  isAvailable
/>

Aurelia 1

<template>
  <require from="./user-profile"></require>
  <user-profile
    name.bind="name"
    age.bind="age"
    favourite-colors.bind="colors"
    is-available.bind="available"
  ></user-profile>
</template>

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 1

  • Convention-based architecture
  • Strong data binding system
  • Dependency injection
  • Modular design

Learning Curve

Svelte 4

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

Aurelia 1

  • Steeper learning curve
  • Convention-based approach
  • Strong TypeScript support
  • 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 modern web applications

Choose Aurelia 1 if you:

  • Need a full-featured enterprise framework
  • Value convention over configuration
  • Want strong data binding capabilities
  • Are building large-scale applications
  • Need dependency injection

Both frameworks excel in different scenarios:

  • Svelte 4 is perfect for modern, performance-focused applications with minimal boilerplate
  • Aurelia 1 shines in enterprise applications where conventions and strong architecture are important

The choice between Svelte 4 and Aurelia 1 often depends on your project’s requirements:

  • Use Svelte 4 for building modern applications with optimal runtime performance
  • Use Aurelia 1 for building large-scale applications that benefit from strong conventions and architecture





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