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