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45 lines
1.4 KiB
Markdown
45 lines
1.4 KiB
Markdown
---
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navigation.icon: IconFile
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title: "app.vue"
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description: "The app.vue file is the main component in your Nuxt 3 applications."
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head.title: "app.vue"
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---
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# App file
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The `app.vue` file is the main component in your Nuxt 3 applications.
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## Minimal usage
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With Nuxt 3, the [`pages/`](/docs/guide/directory-structure/pages) directory is optional. If not present, Nuxt won't include [vue-router](https://router.vuejs.org/) dependency. This is useful when working on a landing page or an application that does not need routing.
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```vue [app.vue]
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<template>
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<h1>Hello World!</h1>
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</template>
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```
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## Usage With Pages
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If you have a [`pages/`](/docs/guide/directory-structure/pages) directory, to display the current page, use the `<NuxtPage>` component:
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```vue [app.vue]
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<template>
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<div>
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<NuxtLayout>
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<NuxtPage/>
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</NuxtLayout>
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</div>
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</template>
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```
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::alert{type=danger}
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Since `<NuxtPage>` internally uses the [`<Suspense>`](https://vuejs.org/guide/built-ins/suspense.html#suspense) component, `<NuxtPage>` cannot be set as a root element.
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::
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::alert{type=warning}
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Remember that `app.vue` acts as the main component of your Nuxt application. Anything you add to it (JS and CSS) will be global and included in every page.
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::
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If you want to have the possibility to customize the structure around the page between pages, check out the [`layouts/`](/docs/guide/directory-structure/layouts) directory.
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