@nuxt/components
Auto Import Components for Nuxt.js
Last updated 8 days ago by pi0 .
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nuxt-components

@nuxt/components

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Module to scan and auto import components for Nuxt.js 2.13+

Table of Contents

Features

  • Scan and auto import components
  • Multiple paths with customizable prefixes and lookup/ignore patterns
  • Dynamic import (aka Lazy loading) Support
  • Hot reloading Support
  • Transpiling Support (useful for component library authors)
  • Fully tested!

Usage

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.

Dynamic Imports

To make a component imported dynamically (lazy loaded), all you need is adding a Lazy prefix in your templates.

If you think this prefix should be customizable, feel free to create a feature request issue!

You are now being able to 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>

Nested Components

If you have components in nested directories:

components/
  foo/
    Bar.vue

The component name will be based on its filename:

<Bar />

We do recommend to use the directory name in the filename for clarity in order to use <FooBar />:

components/
  foo/
    FooBar.vue

If you want to keep the filename as Bar.vue, consider using the prefix option: (See directories section)

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

Directories

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.

Directory Properties

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.

extensions

  • 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:

├── src
│   └── components
│         └── componentC
│           └── componentC.vue
│           └── componentC.js
│           └── componentC.scss
// nuxt.config.js
export default {
  components: [
    { path: '~/components', extensions: ['vue'] }
  ]
}

pattern

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

Accept Pattern that will be run against specified path.

ignore

Ignore patterns that will be run against specified path.

prefix

  • 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>

watch

  • Type: Boolean
  • Default: true

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

transpile

  • Type: Boolean
  • Default: 'auto'

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

Library Authors

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:dir 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 ✨

License

MIT

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