VueJS - Dynamic & Async Components

Creating Dynamic and Asynchronous Components

Dynamic and asynchronous components in VueJS allow you to create more flexible and efficient applications by loading components only when they are needed. This guide covers how to create and use dynamic and async components in VueJS.

Dynamic Components

Using component Element

The component element and the is attribute allow you to dynamically switch between components:

Keep-Alive

The keep-alive element can be used to keep dynamic components in memory, avoiding re-rendering when they are switched out:

Async Components

Basic Async Component

Async components are defined using a function that returns a promise. The component is loaded only when needed:

Async Component with Loading and Error States

You can provide loading and error states while the async component is being loaded:

Best Practices

Follow these best practices when using dynamic and async components:

• Use Dynamic Components for Flexibility: Use dynamic components to switch between components based on user interactions or state changes.
• Leverage Keep-Alive: Use keep-alive to maintain the state of dynamic components and improve performance.
• Load Components Asynchronously: Load components asynchronously to reduce the initial load time of your application.
• Provide Feedback for Async Components: Provide loading and error states for async components to enhance user experience.
• Organize Component Imports: Organize and document your component imports to keep your codebase maintainable and understandable.

Summary

This guide provided an overview of creating and using dynamic and asynchronous components in VueJS. By leveraging these techniques, you can create more flexible, efficient, and scalable VueJS applications.