flow like the river

VISUALIZACION/node_modules/babel-plugin-transform-es2015-modules-commonjs/README.md

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+# babel-plugin-transform-es2015-modules-commonjs
+
+> This plugin transforms ES2015 modules to [CommonJS](http://wiki.commonjs.org/wiki/Modules/1.1).
+>
+> #### Babel 6 Changes
+> 
+> Babel 6 changed some behavior by not doing `module.exports = exports['default']` anymore in the modules transforms.
+> 
+> There are some caveats, but you can use [babel-plugin-add-module-exports](https://www.npmjs.com/package/babel-plugin-add-module-exports), so that updating to Babel 6 isn't a breaking change since users that don't use ES modules don't have to do `require("your-module").default`.
+> 
+> However, it may not match how Node eventually implements ES modules natively given the [the current proposal](https://github.com/nodejs/node-eps/blob/master/002-es-modules.md#46-es-consuming-commonjs).
+
+## Example
+
+**In**
+
+```javascript
+export default 42;
+```
+
+**Out**
+
+```javascript
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+exports.default = 42;
+```
+
+## Installation
+
+```sh
+npm install --save-dev babel-plugin-transform-es2015-modules-commonjs
+```
+
+## Usage
+
+### Via `.babelrc` (Recommended)
+
+**.babelrc**
+
+```js
+// without options
+{
+  "plugins": ["transform-es2015-modules-commonjs"]
+}
+
+// with options
+{
+  "plugins": [
+    ["transform-es2015-modules-commonjs", {
+      "allowTopLevelThis": true
+    }]
+  ]
+}
+```
+
+### Via CLI
+
+```sh
+babel --plugins transform-es2015-modules-commonjs script.js
+```
+
+### Via Node API
+
+```javascript
+require("babel-core").transform("code", {
+  plugins: ["transform-es2015-modules-commonjs"]
+});
+```
+
+## Options
+
+### `loose`
+
+`boolean`, defaults to `false`.
+
+As per the spec, `import` and `export` are only allowed to be used at the top
+level. When in loose mode these are allowed to be used anywhere.
+
+And by default, when using exports with babel a non-enumerable `__esModule` property
+is exported.
+
+```javascript
+var foo = exports.foo = 5;
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+```
+
+In environments that don't support this you can enable loose mode on `babel-plugin-transform-es2015-modules-commonjs`
+and instead of using `Object.defineProperty` an assignment will be used instead.
+
+```javascript
+var foo = exports.foo = 5;
+exports.__esModule = true;
+```
+
+### `strict`
+
+`boolean`, defaults to `false`
+
+By default, when using exports with babel a non-enumerable `__esModule` property
+is exported. In some cases this property is used to determine if the import _is_ the
+default export or if it _contains_ the default export.
+
+```javascript
+var foo = exports.foo = 5;
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+```
+
+In order to prevent the `__esModule` property from being exported, you can set
+the `strict` option to `true`.
+
+### `noInterop`
+
+`boolean`, defaults to `false`
+
+By default, when using exports with babel a non-enumerable `__esModule` property
+is exported. This property is then used to determine if the import _is_ the default
+export or if it _contains_ the default export.
+
+```javascript
+"use strict";
+
+var _foo = require("foo");
+
+var _foo2 = _interopRequireDefault(_foo);
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : { default: obj };
+}
+```
+
+In cases where the auto-unwrapping of `default` is not needed, you can set the
+`noInterop` option to `true` to avoid the usage of the `interopRequireDefault`
+helper (shown in inline form above).