Mixin support is a feature that allows code reuse between components in a Vue.js application and a software composition tool.
Mixins help with following the DRY (don’t repeat yourself) principle. A mixin can even be applied globally to every component instance. In that case, it’s called a global mixin.
Mixins are a powerful tool, but some caution is needed while using them. As with all injected code, we should be careful to avoid maintenance issues and unexpected behavior.
It helps to implement mixins using pure functions that don’t modify anything outside their own scope.
Global mixins should be avoided, as affecting every single component can lead to maintenance issues as an application grows. Injecting specific mixins to components as needed leads to more maintainable code.