How to Use JavaScript Mixins in Magento 2

 Mixins in JavaScript helps to inherit from multiple objects. It allows us to implement certain behvior of classes to other classes. Magento 2 supports using JavaScript mixins that augment the behaviour of base classes to others.

In order to use JavaScript Mixins in Magento 2 , you need to create a requirejs-config .js file and define the mixin. It is helpful when you have to perform tasks before the loading of JavaScript without overwriting the actual script.

You can read the full tutorial to use JavaScript Mixins in Magento 2 at: 

https://meetanshi.com/blog/use-javascript-mixins-in-magento-2/