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Showing content from https://github.com/nuxt/components below:

nuxt/components: Scan and auto import components for Nuxt.js 2.13+

Module to scan and auto import components for Nuxt 2.13+

Automatically scan components/ directory
No need to manually import components anymore
Multiple paths with customizable prefixes and lookup/ignore patterns
Lazy loading (Async components)
Production code-splitting optimization (loader)
Hot reloading
Module integration (library authors)
Fully tested

Set the components option in nuxt.config:

export default {
  components: true
}

Note: If using nuxt 2.10...2.13, you have to also manually install and add @nuxt/components to buildModules inside nuxt.config.

Create your components:

| components/
---| ComponentFoo.vue
---| ComponentBar.vue

Use them whenever you want, they will be auto imported in .vue files :

<template>
  <ComponentFoo />
  <component-bar />
</template>

No need anymore to manually import them in the script section!

See live demo or video example.

Nuxt by default does code-splitting per page and components. But sometimes we also need to lazy load them:

Component size is rather big (or has big dependencies imported) like a text-editor
Component is rendered conditionally with v-if or being in a modal

In order to lazy load a component, all we need to do is to add Lazy prefix to component name.

You now can easily import a component on-demand:

<template>
  <LazyComponentFoo v-if="foo" />
  <button @click="loadFoo">
    Load Foo
  </button>
</template>

<script>
  export default {
    data() {
      return {
        foo: null
      }
    },
    methods: {
      async loadFoo() {
        this.foo = await this.$axios.$get('foo')
      }
    }
  }
</script>

If you want to prefetch or preload the components with Lazy prefix, you can configure it by prefetch/preload options.

If you have components in nested directories:

| components/
---| my/
------| form/
---------| TextArea.vue

The component name will contain its path:

For clarity, it is recommended that component file name matches its name. You can also use MyFormTextArea.vue as name with same directory structure.

If for any reason different prefix is desired, we can add specific directory with the prefix option: (See directories section)

components: ['~/components/', { path: '~/components/foo/', prefix: 'foo' }]

It is possible to have a way to overwrite components using the level option. This is very useful for modules and theme authors.

Considering this structure:

| node_modules/
---| my-theme/
------| components/
---------| Header.vue
| components/
---| Header.vue

Then defining in the nuxt.config:

components: [
  '~/components', // default level is 0
  { path: 'node_modules/my-theme/components', level: 1 }
]

Our components/Header.vue will overwrite our theme component since the lowest level overwrites.

By setting components: true, default ~/components directory will be included. However you can customize module behaviour by providing directories to scan:

export default {
  components: [
    '~/components', // shortcut to { path: '~/components' }
    { path: '~/components/awesome/', prefix: 'awesome' }
  ]
}

Each item can be either string or object. String is shortcut to { path }.

Note: Don't worry about ordering or overlapping directories! Components module will take care of it. Each file will be only matched once with longest path.

Required
Type: String

Path (absolute or relative) to the directory containing your components.

You can use Nuxt aliases (~ or @) to refer to directories inside project or directly use a npm package path similar to require.

Type: Array<string>
Default:
- Extensions supported by Nuxt builder (builder.supportedExtensions)
- Default supported extensions ['vue', 'js'] or ['vue', 'js', 'ts', 'tsx'] depending on your environment

Example: Support multi-file component structure

If you prefer to split your SFCs into .js, .vue and .css, you can only enable .vue files to be scanned:

| components
---| componentC
------| componentC.vue
------| componentC.js
------| componentC.scss

// nuxt.config.js
export default {
  components: [{ path: '~/components', extensions: ['vue'] }]
}

Type: string (glob pattern)
Default: **/*.${extensions.join(',')}

Accept Pattern that will be run against specified path.

Type: Array
Items: string (glob pattern)
Default: []

Ignore patterns that will be run against specified path.

Type: String
Default: '' (no prefix)

Prefix all matched components.

Example below adds awesome-/Awesome prefix to the name of components in awesome/ directory.

// nuxt.config.js
export default {
  components: [
    '~/components',
    { path: '~/components/awesome/', prefix: 'awesome' }
  ]
}

components/
  awesome/
    Button.vue
  Button.vue

<template>
  <div>
    <AwesomeButton>Click on me 🤘</AwesomeButton>
    <button>Click on me</button>
  </div>
</template>

Type: Boolean
Default: true

Prefix component name by it's path

Type: Boolean
Default: true

Watch specified path for changes, including file additions and file deletions.

Type: Boolean
Default: 'auto'

Transpile specified path using build.transpile, by default ('auto') it will set transpile: true if node_modules/ is in path.

Type: Number
Default: 0

Level are use to define a hint when overwriting the components which have the same name in two different directories, this is useful for theming.

export default {
  components: [
    '~/components', // default level is 0
    { path: 'my-theme/components', level: 1 }
  ]
}

Components having the same name in ~/components will overwrite the one in my-theme/components, learn more in Overwriting Components. The lowest value will overwrite.

Type: Boolean/Number
Default: false

These properties are used in production to configure how components with Lazy prefix are handled by Wepack via its magic comments, learn more in Wepack's official documentation.

export default {
  components: [{ path: 'my-theme/components', prefetch: true }]
}

yields:

// plugin.js
const componets = {
  MyComponentA: import(/* webpackPrefetch: true */ ...),
  MyComponentB: import(/* webpackPrefetch: true */ ...)
}

Type: Boolean
Default: false unless component name ends with .async.vue

This flag indicates, component should be loaded async (with a seperate chunk) regardless of using Lazy prefix or not.

Starting with nuxt@2.15, Nuxt uses @nuxt/components v2:

All components are globally available so you can move components/global/ to components/ and global: true is not required anymore
Full path inside components is used to prefix component names. If you were structing your components in multiple directories, should either add prefix or register in components section of nuxt.config or use new pathPrefix option.

Example:

components
├── atoms
│   └── icons
├── molecules
│   └── illustrations
├── organisms
│   └── ads
└── templates
    ├── blog
    └── home

// nuxt.config.js
export default {
  components: [
    '~/components/templates',
    '~/components/atoms',
    '~/components/molecules',
    '~/components/organisms'
  ]
}

Making Vue Component libraries with automatic tree-shaking and component registration is now damn easy ✨

This module expose a hook named components:dirs so you can easily extend the directory list without updating user configuration in your Nuxt module.

Imagine a directory structure like this:

| node_modules/
---| awesome-ui/
------| components/
---------| Alert.vue
---------| Button.vue
------| nuxt.js
| pages/
---| index.vue
| nuxt.config.js

Then in awesome-ui/nuxt.js you can use the components:dirs hook:

import { join } from 'path'

export default function() {
  this.nuxt.hook('components:dirs', dirs => {
    // Add ./components dir to the list
    dirs.push({
      path: join(__dirname, 'components'),
      prefix: 'awesome'
    })
  })
}

That's it! Now in your project, you can import your ui library as a Nuxt module in your nuxt.config.js:

export default {
  buildModules: ['@nuxt/components', 'awesome-ui/nuxt']
}

And directly use the module components (prefixed with awesome-), our pages/index.vue:

<template>
  <div>
    My <AwesomeButton>UI button</AwesomeButton>!
    <awesome-alert>Here's an alert!</awesome-alert>
  </div>
</template>

It will automatically import the components only if used and also support HMR when updating your components in node_modules/awesome-ui/components/.

Next: publish your awesome-ui module to npm and share it with the other Nuxters ✨

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