What are the lifecycle hooks for directives in Vue 3?

What are the lifecycle hooks for directives in Vue 3?

In Vue 3, directives have several lifecycle hooks: beforeMount, mounted, beforeUpdate, updated, beforeUnmount, and unmounted.

Can you explain what each of these hooks does?

Sure!

• beforeMount: Called before the directive is bound to the element.
• mounted: Called when the directive is bound to the element.
• beforeUpdate: Called before the element is updated.
• updated: Called after the element is updated.
• beforeUnmount: Called before the directive is unbound from the element.
• unmounted: Called after the directive is unbound.

How do I use these hooks in my directive?

You can define these hooks in your directive's definition object. For example:

const myDirective = {
  beforeMount(el, binding) {
    // logic before mount
  },
  mounted(el, binding) {
    // logic after mount
  },
  // other hooks...
};

Are there any best practices for using these hooks?

Yes! It's best to keep the logic in these hooks minimal and focused on the specific lifecycle event. Avoid heavy computations to keep your app performant.