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Docs: show CJS workaround for #169 #179

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Docs: show CJS workaround for #169
alexkrolick Sep 18, 2018
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Update README.md
Sep 18, 2018
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Expand Up @@ -272,6 +272,34 @@ module.exports = {
}
```


#### Export Issue with Babel Versions Lower Than 7

Babel versions lower than 7 throw an error when trying to override the named export
in the example above. (See
[#169](https://github.com/kentcdodds/react-testing-library/issues/169).)

<details>
<summary>Workaround</summary>

You can use CommonJS modules instead of ES modules, which should work in Node:

```js
// test-utils.js
const rtl = require('react-testing-library')

const customRender = (node, ...options) => {
return rtl.render(<Something>{node}</Something>)
}

module.exports = {
...rtl,
render: customRender,
}
```

</details>

## Usage

### `render`
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