74 lines
1.2 KiB
Markdown
74 lines
1.2 KiB
Markdown
# @babel/plugin-transform-modules-systemjs
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> This plugin transforms ES2015 modules to [SystemJS](https://github.com/systemjs/systemjs).
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## Example
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**In**
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```javascript
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export default 42;
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```
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**Out**
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```javascript
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System.register([], function (_export, _context) {
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return {
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setters: [],
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execute: function () {
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_export("default", 42);
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}
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};
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});
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```
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For dynamic import support (`import('./lazy.js').then(m => ...)`), enable the [syntax-dynamic-import](https://babeljs.io/docs/plugins/syntax-dynamic-import/) plugin before this one.
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## Installation
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```sh
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npm install --save-dev @babel/plugin-transform-modules-systemjs
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```
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## Usage
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### Via `.babelrc` (Recommended)
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**.babelrc**
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Without options:
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```json
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{
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"plugins": ["@babel/transform-modules-systemjs"]
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}
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```
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With options:
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```json
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{
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"plugins": [
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["@babel/transform-modules-systemjs", {
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// outputs SystemJS.register(...)
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"systemGlobal": "SystemJS"
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}]
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]
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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 @babel/transform-modules-systemjs 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: ["@babel/transform-modules-systemjs"]
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});
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```
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