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22fc63da72
This PR cleans up small documentation and error-page issues: correct TypeScript spelling where it was written as “Typescript”, use the proper GitHub label in links, fix the MDN URL for `Map.prototype.values` in the middleware upgrade guide. No runtime or API behavior changes.
22 lines
766 B
Plaintext
22 lines
766 B
Plaintext
---
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title: ESM packages need to be imported
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---
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## Why This Error Occurred
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Packages in node_modules that are published as ECMAScript Module, need to be `import`ed via `import ... from 'package'` or `import('package')`.
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You get this error when using a different way to reference the package, e.g. `require()`.
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## Possible Ways to Fix It
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1. Use `import` or `import()` to reference the package instead. (Recommended)
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2. If you are already using `import`, make sure that this is not changed by a transpiler, e. g. TypeScript or Babel.
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3. Switch to loose mode (`experimental.esmExternals: 'loose'`), which tries to automatically correct this error.
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## Useful Links
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- [Node.js ESM require docs](https://nodejs.org/dist/latest-v16.x/docs/api/esm.html#esm_require)
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