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37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
---
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title: 'babel'
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sidebar:
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order: 5
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title: babel
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---
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Parent: [main.js|ts configuration](./main-config.mdx)
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Type: `(config: Babel.Config, options: Options) => Babel.Config | Promise<Babel.Config>`
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Customize Storybook's [Babel](https://babeljs.io/) setup.
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<Callout variant="info" icon="💡">
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[Addon authors](../../addons/writing-presets.mdx#babel) should use [`babelDefault`](./main-config-babel-default.mdx) instead, which is applied to the preview config before any user presets have been applied.
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</Callout>
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{/* prettier-ignore-start */}
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<CodeSnippets path="main-config-babel.md" />
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{/* prettier-ignore-end */}
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## `Babel.Config`
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The options provided by [Babel](https://babeljs.io/docs/options) are only applicable if you've enabled the [`@storybook/addon-webpack5-compiler-babel`](https://storybook.js.org/addons/@storybook/addon-webpack5-compiler-babel) addon.
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<Callout variant="info">
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If you have an existing Babel configuration file (e.g., `.babelrc`), it will be automatically detected and used by Storybook without any additional configuration required.
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</Callout>
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## `Options`
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Type: `{ configType?: 'DEVELOPMENT' | 'PRODUCTION' }`
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There are other options that are difficult to document here. Please introspect the type definition for more information.
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