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chore: mention exports being breaking in upgrade guide (#12739)
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SimenB committed Apr 25, 2022
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4 changes: 4 additions & 0 deletions docs/UpgradingToJest28.md
Expand Up @@ -157,6 +157,10 @@ npm install --save-dev jest-jasmine2
}
```

## `package.json` `exports`

Jest now includes full support for [package `exports`](https://nodejs.org/api/packages.html#exports), which might mean that files you import are not resolved correctly. Additionally, Jest now supplies more conditions. `jest-environment-node` has `node` and `node-addons`, while `jest-environment-jsdom` has `browser`. As a result, you might e.g. get browser code which assumes ESM, when Jest provides `['require', 'browser']`. You can either report a bug to the library (or Jest, the implementation is new and might have bugs!) or override the conditions Jest passes.

## TypeScript

:::info
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4 changes: 4 additions & 0 deletions website/versioned_docs/version-28.0/UpgradingToJest28.md
Expand Up @@ -157,6 +157,10 @@ npm install --save-dev jest-jasmine2
}
```

## `package.json` `exports`

Jest now includes full support for [package `exports`](https://nodejs.org/api/packages.html#exports), which might mean that files you import are not resolved correctly. Additionally, Jest now supplies more conditions. `jest-environment-node` has `node` and `node-addons`, while `jest-environment-jsdom` has `browser`. As a result, you might e.g. get browser code which assumes ESM, when Jest provides `['require', 'browser']`. You can either report a bug to the library (or Jest, the implementation is new and might have bugs!) or override the conditions Jest passes.

## TypeScript

:::info
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