VueJS - Fragments

Using Fragments in Vue 3

Fragments in Vue 3 allow you to return multiple root elements from a component without needing a wrapper element. This feature helps in creating cleaner and more semantic templates by removing unnecessary wrapping elements.

Basic Usage of Fragments

To use fragments in Vue 3, simply return an array of elements from the render function or use multiple root elements in the template:

// MyComponent.vue

                

With fragments, you can directly write:

// MyComponent.vue

                

Using Render Function with Fragments

You can also use the render function to return multiple root elements:

// MyComponent.js
export default {
  render() {
    return [
      this.$createElement('p', 'First element'),
      this.$createElement('p', 'Second element')
    ];
  }
};
                

Combining Fragments with Teleport

Fragments can be combined with the teleport feature to render multiple root elements in a different part of the DOM:

// App.vue

                

Best Practices

Follow these best practices when using fragments in Vue 3:

• Use Fragments for Clean Templates: Use fragments to avoid unnecessary wrapper elements and keep your templates clean and semantic.
• Maintain Readability: While fragments can simplify your templates, ensure that your code remains readable and maintainable.
• Test Thoroughly: Test your components thoroughly to ensure that the use of fragments does not introduce any unexpected behavior.

Summary

This guide provided an overview of using fragments in Vue 3, including basic usage, using render functions with fragments, combining fragments with teleport, and best practices. By leveraging fragments, you can create cleaner and more semantic templates in your Vue 3 applications.