docs(experiments): document experiments.typescript (5.107)#8247
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bjohansebas wants to merge 1 commit into
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docs(experiments): document experiments.typescript (5.107)#8247bjohansebas wants to merge 1 commit into
bjohansebas wants to merge 1 commit into
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Webpack 5.107 adds first-class TypeScript support behind a new experiments.typescript flag using Node.js's built-in module.stripTypeScriptTypes (Node.js >= 22.6). Documents: - The flag itself (boolean, default false, auto-enabled by experiments.futureDefaults). - The defaults it wires up (rules, extension resolution, extensionAlias, tsconfig resolution, "typescript" conditional-exports key). - The constraints: types-only transform, no type checking, no JSX/.tsx, no non-erasable syntax (enum, namespace, etc.), matching tsconfig's erasableSyntaxOnly. - Links to examples/typescript and examples/typescript-non-erasable in the webpack repo for both the built-in setup and the ts-loader fallback. Refs: webpack/webpack#20964
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alexander-akait
approved these changes
May 19, 2026
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@bjohansebas let's rebase and we can merge, thanks |
evenstensberg
approved these changes
May 20, 2026
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could you rebase? |
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Summary
Webpack 5.107 adds first-class TypeScript support behind a new
experiments.typescriptflag using Node.js's built-inmodule.stripTypeScriptTypes(Node.js >= 22.6).Documents:
boolean, defaultfalse, auto-enabled byexperiments.futureDefaults)..ts/.cts/.mts,.tsin extension resolution,extensionAliasfrom.js/.cjs/.mjsto the matching.tsextensions,tsconfig.jsonresolution, and the"typescript"conditional-exports key..tsx, no non-erasable syntax likeenum/namespace/ parameter-property constructors), matching tsconfig'serasableSyntaxOnly.examples/typescriptandexamples/typescript-non-erasablefor the built-in setup and thets-loaderfallback.Refs: webpack/webpack#20964
Test plan
### experiments.typescriptsectionUse of AI
Drafted with Claude under human review. The contributor verified each change against the upstream webpack PR before commit.