doc(typescript.md) Mention incremental type checking (#25268)

* doc(typescript.md) Mention incremental type checking * Apply suggestions from code review Co-authored-by: Tobias Koppers <[email protected]> Co-authored-by: Tobias Koppers <[email protected]>
vercel · May 19, 2021 · ece07f6 · ece07f6
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@@ -127,3 +127,9 @@ export default MyApp
 Next.js automatically supports the `tsconfig.json` `"paths"` and `"baseUrl"` options.
 
 You can learn more about this feature on the [Module Path aliases documentation](/docs/advanced-features/module-path-aliases.md).
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+## Incremental type checking
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+Since `v10.2.1` Next.js supports [incremental type checking](https://www.typescriptlang.org/tsconfig#incremental) when enabled in your `tsconfig.json`, this can help speed up type checking in larger applications.
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+It is highly recommended to be on at least `v4.3.0-beta` of TypeScript to experience the best performance when leveraging this feature.