Why we need Vue.js mixins?

Mixins in Vue JS are a chunk of defined logic that is stored in a particular way. It can be re-used over and over to add functionality to your Vue instances and components. It is important that we need Vue JS because,

1. You can easily adhere to the DRY principle with mixins. It ensures that you do not repeat yourself.
2. You get a lot of flexibility with mixins. Mixin contains options for Vue components.
3. Mixins are safe and they do not affect changes outside their defined scope.
4. Mixins in Vue JS are a great platform for code reusability.