Vue2. Vue 2 mixins Vue 3 mixins Composition API This should be rarely needed given Vue's fully automatic reactivity system. Vue Read the code (opens new window) and see how it is rendered in the live example (opens new window). It replaces the slot and slot-scope attributes, which are now deprecated, but have not been removed and are still documented here.The rationale for introducing the new In Vue 3, it is also primarily used together with the