v-if vs v-show

Conditional Rendering Directives

v-if truly creates/destroys nodes; v-show toggles CSS display.

Prefer v-if for rarely shown content; v-show for frequent toggles.

<p v-if="error">{{ error }}</p>
<p v-show="isOpen">Drawer</p>

Contrast expensive vs cheap toggles.

Also

`v-else`, `v-else-if`, `<template v-if>`

• Prefer Vue 3 + Composition API.
• Use script setup for SFCs.
• Keep components focused.
• Lean on official docs.

v-if vs v-show Cheatsheet

Quick reference for patterns covered in this lesson.

Cost

Initial v-show renders hidden content — beware heavy trees.

Common Mistakes

• v-if/v-for on same node.
• Using v-show for permission-sensitive content that shouldn't exist.

Key Takeaways

• v-if vs v-show is a core Vue skill.
• Practice in a Vite app.
• Prefer clarity.
• Revisit docs for edge cases.