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262 lines
6.6 KiB
262 lines
6.6 KiB
# @vitejs/plugin-vue [](https://npmjs.com/package/@vitejs/plugin-vue)
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> Note: as of `vue` 3.2.13+ and `@vitejs/plugin-vue` 1.9.0+, `@vue/compiler-sfc` is no longer required as a peer dependency.
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```js
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// vite.config.js
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import vue from '@vitejs/plugin-vue'
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export default {
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plugins: [vue()],
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}
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```
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For JSX / TSX support, [`@vitejs/plugin-vue-jsx`](https://github.com/vitejs/vite-plugin-vue/tree/main/packages/plugin-vue-jsx) is also needed.
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## Options
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```ts
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export interface Options {
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include?: string | RegExp | (string | RegExp)[]
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exclude?: string | RegExp | (string | RegExp)[]
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isProduction?: boolean
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/**
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* Requires @vitejs/plugin-vue@^5.1.0
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*/
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features?: {
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/**
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* Enable reactive destructure for `defineProps`.
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* - Available in Vue 3.4 and later.
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* - **default:** `false` in Vue 3.4 (**experimental**), `true` in Vue 3.5+
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*/
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propsDestructure?: boolean
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/**
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* Transform Vue SFCs into custom elements.
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* - `true`: all `*.vue` imports are converted into custom elements
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* - `string | RegExp`: matched files are converted into custom elements
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* - **default:** /\.ce\.vue$/
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*/
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customElement?: boolean | string | RegExp | (string | RegExp)[]
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/**
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* Set to `false` to disable Options API support and allow related code in
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* Vue core to be dropped via dead-code elimination in production builds,
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* resulting in smaller bundles.
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* - **default:** `true`
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*/
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optionsAPI?: boolean
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/**
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* Set to `true` to enable devtools support in production builds.
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* Results in slightly larger bundles.
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* - **default:** `false`
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*/
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prodDevtools?: boolean
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/**
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* Set to `true` to enable detailed information for hydration mismatch
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* errors in production builds. Results in slightly larger bundles.
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* - **default:** `false`
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*/
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prodHydrationMismatchDetails?: boolean
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}
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// `script`, `template` and `style` are lower-level compiler options
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// to pass on to respective APIs of `vue/compiler-sfc`
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script?: Partial<
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Omit<
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SFCScriptCompileOptions,
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| 'id'
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| 'isProd'
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| 'inlineTemplate'
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| 'templateOptions'
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| 'sourceMap'
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| 'genDefaultAs'
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| 'customElement'
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>
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>
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template?: Partial<
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Omit<
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SFCTemplateCompileOptions,
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| 'id'
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| 'source'
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| 'ast'
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| 'filename'
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| 'scoped'
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| 'slotted'
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| 'isProd'
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| 'inMap'
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| 'ssr'
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| 'ssrCssVars'
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| 'preprocessLang'
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>
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>
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style?: Partial<
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Omit<
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SFCStyleCompileOptions,
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| 'filename'
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| 'id'
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| 'isProd'
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| 'source'
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| 'scoped'
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| 'cssDevSourcemap'
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| 'postcssOptions'
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| 'map'
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| 'postcssPlugins'
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| 'preprocessCustomRequire'
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| 'preprocessLang'
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| 'preprocessOptions'
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>
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>
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/**
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* Use custom compiler-sfc instance. Can be used to force a specific version.
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*/
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compiler?: typeof _compiler
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/**
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* @deprecated moved to `features.customElement`.
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*/
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customElements?: boolean | string | RegExp | (string | RegExp)[]
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}
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```
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## Asset URL handling
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When `@vitejs/plugin-vue` compiles the `<template>` blocks in SFCs, it also converts any encountered asset URLs into ESM imports.
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For example, the following template snippet:
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```vue
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<img src="../image.png" />
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```
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Is the same as:
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```vue
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<script setup>
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import _imports_0 from '../image.png'
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</script>
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<img :src="_imports_0" />
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```
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By default the following tag/attribute combinations are transformed, and can be configured using the `template.transformAssetUrls` option.
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```js
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{
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video: ['src', 'poster'],
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source: ['src'],
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img: ['src'],
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image: ['xlink:href', 'href'],
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use: ['xlink:href', 'href']
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}
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```
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Note that only attribute values that are static strings are transformed. Otherwise, you'd need to import the asset manually, e.g. `import imgUrl from '../image.png'`.
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## Example for passing options to `vue/compiler-sfc`:
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```ts
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import vue from '@vitejs/plugin-vue'
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export default {
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plugins: [
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vue({
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template: {
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compilerOptions: {
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// ...
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},
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transformAssetUrls: {
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// ...
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},
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},
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}),
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],
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}
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```
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## Example for transforming custom blocks
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```ts
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import vue from '@vitejs/plugin-vue'
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import yaml from 'js-yaml'
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const vueI18nPlugin = {
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name: 'vue-i18n',
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transform(code, id) {
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// if .vue file don't have <i18n> block, just return
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if (!/vue&type=i18n/.test(id)) {
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return
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}
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// parse yaml
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if (/\.ya?ml$/.test(id)) {
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code = JSON.stringify(yaml.load(code.trim()))
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}
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// mount the value on the i18n property of the component instance
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return `export default Comp => {
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Comp.i18n = ${code}
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}`
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},
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}
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export default {
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plugins: [vue(), vueI18nPlugin],
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}
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```
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Create a file named `Demo.vue`, add `lang="yaml"` to the `<i18n>` blocks, then you can use the syntax of `YAML`:
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```vue
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<template>Hello</template>
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<i18n lang="yaml">
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message: 'world'
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fullWord: 'hello world'
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</i18n>
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```
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`message` is mounted on the i18n property of the component instance, you can use like this:
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```vue
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<script setup lang="ts">
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import Demo from 'components/Demo.vue'
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</script>
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<template>
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<Demo /> {{ Demo.i18n.message }}
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<div>{{ Demo.i18n.fullWord }}</div>
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</template>
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```
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## Using Vue SFCs as Custom Elements
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> Requires `vue@^3.2.0` & `@vitejs/plugin-vue@^1.4.0`
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Vue 3.2 introduces the `defineCustomElement` method, which works with SFCs. By default, `<style>` tags inside SFCs are extracted and merged into CSS files during build. However when shipping a library of custom elements, it may be desirable to inline the styles as JavaScript strings and inject them into the custom elements' shadow root instead.
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Starting in 1.4.0, files ending with `*.ce.vue` will be compiled in "custom elements" mode: its `<style>` tags are compiled into inlined CSS strings and attached to the component as its `styles` property:
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```js
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import { defineCustomElement } from 'vue'
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import Example from './Example.ce.vue'
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console.log(Example.styles) // ['/* css content */']
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// register
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customElements.define('my-example', defineCustomElement(Example))
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```
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Note in custom elements mode there is no need to use `<style scoped>` since the CSS is already scoped inside the shadow DOM.
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The `customElement` plugin option can be used to configure the behavior:
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- `{ customElement: true }` will import all `*.vue` files in custom element mode.
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- Use a string or regex pattern to change how files should be loaded as Custom Elements (this check is applied after `include` and `exclude` matches).
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## License
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MIT
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