What are Vue Mixins, and how do they work?

Vue Mixins are a way to reuse component logic. By defining common functionality in a mixin, it can be included in multiple components. Mixins can include data, methods, lifecycle hooks, etc., and are merged into the component that uses them. Conflicts are resolved by giving priority to the component’s own properties. Example:

const myMixin = { data() { return { sharedData: 'Hello' }; } };