Explain the Vue.js Lifecycle Hooks
Instruction: Describe the lifecycle hooks available in Vue.js and their importance in the component lifecycle.
Context: This question assesses the candidate's understanding of Vue.js lifecycle hooks and how they are used to perform actions at different stages of a component's lifecycle.
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Lifecycle hooks let a component attach work to creation, mounting, updates and removal. Specify the Vue version: Vue 3 uses beforeUnmount/unmounted in the Options API; beforeDestroy/destroyed are Vue 2 names.
In Vue 3 Composition API, initialize reactive state during setup and register hooks such as onMounted, onBeforeUpdate, onUpdated and onUnmounted synchronously during setup. The Options API still provides beforeCreate/created, but setup runs before those hooks...