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- # babel-plugin-transform-es2015-parameters
- > Compile ES2015 default and rest parameters to ES5
- This plugin transforms ES2015 parameters to ES5, this includes:
- - Destructuring parameters
- - Default parameters
- - Rest parameters
- ## Installation
- ```sh
- npm install --save-dev babel-plugin-transform-es2015-parameters
- ```
- ## Caveats
- Default parameters desugar into `let` declarations to retain proper semantics. If this is
- not supported in your environment then you'll need the
- [transform-block-scoping](http://babeljs.io/docs/plugins/transform-es2015-block-scoping) plugin.
- ## Usage
- ### Via `.babelrc` (Recommended)
- **.babelrc**
- ```json
- {
- "plugins": ["transform-es2015-parameters"]
- }
- ```
- ### Via CLI
- ```sh
- babel --plugins transform-es2015-parameters script.js
- ```
- ### Via Node API
- ```javascript
- require("babel-core").transform("code", {
- plugins: ["transform-es2015-parameters"]
- });
- ```
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