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40 lines
1.4 KiB
Markdown
40 lines
1.4 KiB
Markdown
---
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title: 'Babel'
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---
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Storybook’s webpack config by [default](#default-configuration) sets up [Babel](https://babeljs.io/) for ES6 transpiling. Storybook works with evergreen browsers by default.
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If you want to run Storybook in IE11, make sure to [disable](../essentials/introduction#disabling-addons) the docs-addon that is part of `@storybook/addon-essentials`, as this currently [causes issues in IE11](https://github.com/storybookjs/storybook/issues/8884).
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Here are some key features of Storybook's Babel configurations.
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### Default configuration
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We have added ES2016 support with Babel for transpiling your JS code.
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In addition to that, we've added a few additional features, like object spreading and async await.
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Check out our [source](https://github.com/storybookjs/storybook/blob/master/lib/core/src/server/common/babel.ts) to learn more about these plugins.
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### Custom config file
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If your project has a `.babelrc` file, we'll use that instead of the default config file.
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You can also place a `.storybook/.babelrc` file to use a special configuration for Storybook only.
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### Custom configuration
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If you need to further configure/extend the babel config Storybook uses, you can use the `babel` field of [`.storybook/main.js`](./overview#configure-your-storybook-project):
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```js
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// .storybook/main.js
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module.exports = {
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//...
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babel: async (options) => ({
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...options,
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// any extra options you want to set
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}),
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};
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```
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