40 lines
1.2 KiB
Markdown
40 lines
1.2 KiB
Markdown
|
# @vue/cli-plugin-babel
|
||
|
|
|
||
|
|
> babel plugin for vue-cli
|
||
|
|
|
||
|
|
## Configuration
|
||
|
|
|
||
|
|
Uses Babel 7 + `babel-loader` + [@vue/babel-preset-app](https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/babel-preset-app) by default, but can be configured via `babel.config.js` to use any other Babel presets or plugins.
|
||
|
|
|
||
|
|
By default, `babel-loader` excludes files inside `node_modules` dependencies. If you wish to explicitly transpile a dependency module, you will need to add it to the `transpileDependencies` option in `vue.config.js`:
|
||
|
|
|
||
|
|
``` js
|
||
|
|
module.exports = {
|
||
|
|
transpileDependencies: [
|
||
|
|
// can be string or regex
|
||
|
|
'my-dep',
|
||
|
|
/other-dep/
|
||
|
|
]
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
## Caching
|
||
|
|
|
||
|
|
[cache-loader](https://github.com/webpack-contrib/cache-loader) is enabled by default and cache is stored in `<projectRoot>/node_modules/.cache/babel-loader`.
|
||
|
|
|
||
|
|
## Parallelization
|
||
|
|
|
||
|
|
[thread-loader](https://github.com/webpack-contrib/thread-loader) is enabled by default when the machine has more than 1 CPU cores. This can be turned off by setting `parallel: false` in `vue.config.js`.
|
||
|
|
|
||
|
|
## Installing in an Already Created Project
|
||
|
|
|
||
|
|
``` sh
|
||
|
|
vue add @vue/babel
|
||
|
|
```
|
||
|
|
|
||
|
|
## Injected webpack-chain Rules
|
||
|
|
|
||
|
|
- `config.rule('js')`
|
||
|
|
- `config.rule('js').use('babel-loader')`
|
||
|
|
- `config.rule('js').use('cache-loader')`
|