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