Nuxt/docs/content/1.docs/3.api/3.utils/define-nuxt-component.md

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---
title: "defineNuxtComponent"
description: defineNuxtComponent() is a helper function for defining type safe components with Options API.
---
# `defineNuxtComponent`
`defineNuxtComponent()` is a helper function for defining type safe Vue components using options API similar to [defineComponent()](https://vuejs.org/api/general.html#definecomponent). `defineNuxtComponent()` wrapper also adds support for `asyncData` and `head` component options.
::Alert
Using `<script setup lang="ts">` is the recommended way of declaring Vue components in Nuxt 3.
::
:ReadMore{link=/getting-started/data-fetching#options-api-support}
## `asyncData()`
If you choose not to use `setup()` in your app, you can use the `asyncData()` method within your component definition:
```vue [pages/index.vue]
<script lang="ts">
export default defineNuxtComponent({
async asyncData() {
return {
data: {
greetings: 'hello world!'
}
}
},
})
</script>
```
## `head()`
If you choose not to use `setup()` in your app, you can use the `head()` method within your component definition:
```vue [pages/index.vue]
<script lang="ts">
export default defineNuxtComponent({
head(nuxtApp) {
return {
title: 'My site'
}
},
})
</script>
```