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Why hasn't Vue completely deprecated the Options API in favor of the Composition API?

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Hi everyone,

I've been wondering about Vue's continued support for the Options API, especially since the Composition API offers so many advantages in terms of flexibility, code organization, and scalability in larger projects.

For example, using the Composition API makes it easier to reuse logic, improves TypeScript support, and encourages better separation of concerns. From a modern development perspective, it's arguably the better choice in almost every way.

So my question is: Why hasn't the Vue team deprecated or phased out the Options API altogether to push developers toward the Composition API? Wouldn't that make the ecosystem more consistent and help developers adopt a more scalable approach by default?

Curious to hear your thoughts — especially from those who've worked on large Vue codebases or migrated from Options API to Composition API.

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The options API is so much nicer for simple components. The syntax is less intrusive, in my opinion. Just makes it dead easy to whip out a component that needs just a few functions, with simple state to manage.

The composition API feels more object-oriented, though, which might be a more familiar feel for backend developers accustomed to OOP languages.

Honestly, the composition API has an awkward syntax. It feels half objected-oriented and half ... something else you only see in JavaScript.

I actually wish components were legit classes with a constructor. Lifecycle hooks can be implemented as methods with a certain name.

And I like the simpler procedural approach of the options API. I like both for different reasons.
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I totally hear you about the awkward syntax — but honestly, with the introduction of (script setup) , a lot of that has improved dramatically.

It's much cleaner and more intuitive now. You can write Composition API code almost as if you're using regular JavaScript modules, without the boilerplate of setup() functions or constant return statements. It really bridges the gap between simplicity and power.