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154 lines
4.4 KiB
Markdown
154 lines
4.4 KiB
Markdown
---
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title: 'Views'
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description: 'Nuxt provides several component layers to implement the user interface of your application.'
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navigation.icon: i-ph-layout-duotone
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---
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## `app.vue`
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By default, Nuxt will treat this file as the **entrypoint** and render its content for every route of the application.
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```vue [app.vue]
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<template>
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<div>
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<h1>Welcome to the homepage</h1>
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</div>
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</template>
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```
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::callout
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If you are familiar with Vue, you might wonder where `main.js` is (the file that normally creates a Vue app). Nuxt does this behind the scene.
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::
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## Components
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Most components are reusable pieces of the user interface, like buttons and menus. In Nuxt, you can create these components in the [`components/`](/docs/guide/directory-structure/components) directory, and they will be automatically available across your application without having to explicitly import them.
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::code-group
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```vue [app.vue]
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<template>
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<div>
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<h1>Welcome to the homepage</h1>
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<AppAlert>
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This is an auto-imported component.
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</AppAlert>
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</div>
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</template>
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```
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```vue [components/AppAlert.vue]
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<template>
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<span>
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<slot />
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</span>
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</template>
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```
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::
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## Pages
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Pages represent views for each specific route pattern. Every file in the [`pages/`](/docs/guide/directory-structure/pages) directory represents a different route displaying its content.
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To use pages, create `pages/index.vue` file and add `<NuxtPage />` component to the [`app.vue`](/docs/guide/directory-structure/app) (or remove `app.vue` for default entry). You can now create more pages and their corresponding routes by adding new files in the [`pages/`](/docs/guide/directory-structure/pages) directory.
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::code-group
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```vue [pages/index.vue]
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<template>
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<div>
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<h1>Welcome to the homepage</h1>
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<AppAlert>
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This is an auto-imported component
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</AppAlert>
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</div>
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</template>
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```
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```vue [pages/about.vue]
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<template>
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<section>
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<p>This page will be displayed at the /about route.</p>
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</section>
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</template>
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```
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::
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:read-more{title="Routing Section" to="/docs/getting-started/routing"}
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## Layouts
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Layouts are wrappers around pages that contain a common User Interface for several pages, such as a header and footer display. Layouts are Vue files using `<slot />` components to display the **page** content. The `layouts/default.vue` file will be used by default. Custom layouts can be set as part of your page metadata.
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::callout
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If you only have a single layout in your application, we recommend using [`app.vue`](/docs/guide/directory-structure/app) with [`<NuxtPage />`](/docs/api/components/nuxt-page) instead.
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::
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::code-group
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```vue [layouts/default.vue]
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<template>
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<div>
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<AppHeader />
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<slot />
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<AppFooter />
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</div>
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</template>
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```
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```vue [pages/index.vue]
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<template>
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<div>
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<h1>Welcome to the homepage</h1>
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<AppAlert>
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This is an auto-imported component
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</AppAlert>
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</div>
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</template>
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```
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```vue [pages/about.vue]
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<template>
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<section>
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<p>This page will be displayed at the /about route.</p>
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</section>
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</template>
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```
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::
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If you want to create more layouts and learn how to use them in your pages, find more information in the [Layouts section](/docs/guide/directory-structure/layouts).
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## Advanced: Extending the HTML template
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::callout
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If you only need to modify the `<head>`, you can refer to the [SEO and meta section](/docs/getting-started/seo-meta).
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::
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You can have full control over the HTML template by adding a Nitro plugin that registers a hook.
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The callback function of the `render:html` hook allows you to mutate the HTML before it is sent to the client.
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```ts twoslash [server/plugins/extend-html.ts]
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export default defineNitroPlugin((nitroApp) => {
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nitroApp.hooks.hook('render:html', (html, { event }) => {
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// This will be an object representation of the html template.
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console.log(html)
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html.head.push(`<meta name="description" content="My custom description" />`)
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})
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// You can also intercept the response here.
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nitroApp.hooks.hook('render:response', (response, { event }) => { console.log(response) })
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})
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```
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:read-more{to="/docs/guide/going-further/hooks"}
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