Common Vue Mistakes

Mistakes to Avoid

Common pitfalls include lost reactivity from destructuring, missing keys, and overusing watchers.

Learn these once to save days of debugging.

// Mistake: const { count } = props // loses reactivity for some patterns
// Fix: toRefs(props) or use props.count in computed

Reactivity loss via careless destructure.

Hit List

prop mutate, index keys, unsafe v-html, deep watch overuse

• Handle loading and errors.
• Keep composables tested.
• Prefer TypeScript when you can.
• Measure before optimizing.

Common Vue Mistakes Cheatsheet

Quick reference for patterns covered in this lesson.

Debugging

Vue DevTools + carefully logging refs (.value).

Common Mistakes

• Blaming Vue for mutated props.
• Ignoring warnings.

Key Takeaways

• Common Vue Mistakes shows up often in Vue apps.
• Practice with a demo.
• Prefer clear APIs.
• Read official docs for edge cases.