Vue 3 components follow a predictable lifecycle with four main phases: creation, mounting, updating, and unmounting. The Composition API provides lifecycle hooks like setup(), onMounted(), onBeforeUpdate(), onUpdated(), onBeforeUnmount(), and onUnmounted() that allow developers to execute custom code at specific stages. Additional hooks like onRenderTracked(), onActivated(), and onErrorCaptured() support advanced use cases including debugging, KeepAlive components, and error handling. Best practices include pairing setup and cleanup logic, avoiding heavy operations in update hooks, and leveraging Vue's reactivity system instead of manual state management.
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PrerequisitesWhat Are Vue.js Lifecycle Hooks?The Vue Composition APICreation Phase (setup() Hook)Mounting Phase (Mounting Hooks)Updating Phase (Updating Hooks)Unmounting Phase (Unmounting Hooks)Additional Life Cycle HooksWrapping UpSort: