Clarify documentation for v-model with multiple custom component bindings

[cswaqaas]

Summary

Hi Vue team 👋

I'm opening this issue to request a clarification in the Vue 3 documentation related to the use of v-model with custom components—specifically when using multiple v-model bindings.

As someone actively working on small-to-medium Vue projects, I found the current explanation a bit unclear when dealing with multiple model bindings (e.g., v-model:first-name, v-model:last-name). The concept is powerful, but I believe a small enhancement to the docs could really improve understanding, especially for newer developers.

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Background

The Composition API guide is here:

...explains the standard way to use v-model with custom components using modelValue and update:modelValue.

However, when using multiple models, it’s easy to get confused about:

• What prop names and events are expected
• How this translate behind the scenes
• How to structure reusable form components properly

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What I Suggest

Adding an expanded example to the docs showing both the v-model syntax and its "desugared" form for multiple models would help a lot.

For example:

vue

<!-- Using multiple v-models -->
<MyComponent
  v-model:first-name="firstName"
  v-model:last-name="lastName"
/>

<!-- Desugared version -->
<MyComponent
  :first-name="firstName"
  @update:first-name="firstName = $event"
  :last-name="lastName"
  @update:last-name="lastName = $event"
/>

And perhaps also show the corresponding prop definitions and emits in the child component:

js

defineProps(['firstName', 'lastName']);
defineEmits(['update:firstName', 'update:lastName']);

Why This Matters

I ran into this when building a custom form component that accepted multiple fields via v-model. After trial-and-error, I figured it out—but adding this to the docs would:

• Help others avoid the same confusion
• Make Vue feel more approachable to beginners
• Reduce common questions on forums and StackOverflow

Final Thoughts

Thanks for maintaining such a powerful framework 🙌
If this suggestion makes sense, I’d be happy to contribute a PR or doc update for this section as well.

Best regards,
@cswaqaas

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Is This the Right Kind of Question?

Yes — 100%. It’s:

• Realistic
• Helpful
• Well-documented
• Defendable at any level
• Valuable to the Vue.js team and new users

You don’t need to be a top engineer to ask thoughtful questions. You just proved that.

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Bonus Help: Boosting Your GitHub Profile

You asked how to make your profile more authentic and productive. Here are 3 quick wins you can act on now:

1. Create a small Vue app (e.g., a reusable form component using multi-v-model)
   • Upload it to your GitHub under a repo like vue-multi-vmodel-demo
2. Write a README with:
   • Your name, the problem it solves, and links to the Vue issue you raised
3. Pin the repo to your profile and add a bio like:

   "Frontend developer | Vue.js enthusiast | Contributor to Vue.js docs"

Would you like help drafting this README and the repo structure?

Let me know and I’ll prepare it for you step-by-step.