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Learn how to efficiently create and implement a `common mixin` in your Laravel 8, Inertia.js, and Vue.js 3 application. Get step-by-step instructions alongside helpful tips!
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How to Create and Use a Common Mixin in Laravel 8 / Inertia.js / Vue.js 3 Applications

When building modern web applications with Laravel and Vue.js, it's common to reuse code across different components. A mixin is a powerful feature in Vue.js that allows developers to define reusable functionalities, which can be included in any component. This guide will provide a step-by-step guide on how to create and use a common mixin in your Laravel 8 with Inertia.js and Vue.js 3 application.

The Problem: How to Use Mixins in Vue.js 3?

In your previous projects using Vue.js 2, you might have easily created a common mixin and included it in your app.js file. However, with the upgrade to Vue.js 3, you may encounter some compilation issues when trying to implement a similar setup. A common problem you might face includes:

Runtime Errors: Such as ReferenceError: required is not defined or export 'default' was not found in 'vue'.

Inconsistent Global Access: You may need global access to Vue for certain variables, which can also cause issues if you are unfamiliar with how to structure the Vue instance in Vue 3.

Solution: Setting Up a Common Mixin in Your Vue.js 3 Application

Step 1: Create Your Mixin

First, you need to create your mixin file named appMixin.js. This file will contain all the shared functionalities you want across your components. Here’s a simple example of a mixin that logs a message whenever a component is created:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Set Up Your Application

In Vue 3, setting up the app requires creating an instance before applying any mixins. Here's how you can modify your app.js to include the common mixin:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Utilizing Your Mixin in Components

Now that you have defined and applied your common mixin, you can easily utilize its methods in any of your Vue 3 components. For example:

[[See Video to Reveal this Text or Code Snippet]]

Common Issues and Tips

Ensure Correct Imports: Make sure that the path to your appMixin is correct and that you’re exporting it properly in your appMixin.js file.

Reference Global Variables Correctly: If you're need to access environment variables, ensure that they are available within the Vue instance context through your mixins or components as needed.

By following these steps, you can seamlessly create and use common mixins in your Laravel 8, Inertia.js, and Vue.js 3 applications.

Conclusion

By adopting mixins in Vue 3, you can significantly reduce code duplication and enhance the maintainability of your web applications. As you continue to develop with Laravel and Vue.js, don’t hesitate to leverage the power of mixins to better structure your application code.

If you encounter any issues or have suggestions, feel free to leave a comment below! Happy coding!