microsoft-typescript

# microsoft/TypeScript `typescript` > TypeScript is a language for application scale JavaScript development **Version:** 6.0.2 **Tags:** dev: 3.9.4, tag-for-publishing-older-releases: 4.1.6, insiders: 4.6.2-insiders.20220225, latest: 6.0.2, beta: 6.0.0-beta, rc: 6.0.1-rc, next: 6.0.0-dev.20260323 **References:** [package.json](./.skilld/pkg/package.json) — exports, entry points • [README](./.skilld/pkg/README.md) — setup, basic usage • [Docs](./.skilld/docs/_INDEX.md) — API reference, guides • [GitHub Issues](./.skilld/issues/_INDEX.md) — bugs, workarounds, edge cases • [Releases](./.skilld/releases/_INDEX.md) — changelog, breaking changes, new APIs ## Search Use `skilld search "query" -p typescript` instead of grepping `.skilld/` directories. Run `skilld search --guide -p typescript` for full syntax, filters, and operators. <!-- skilld:api-changes --> ## API Changes This section documents version-specific API changes for TypeScript v5.7+, prioritizing recent major/minor releases. - BREAKING: `ArrayBuffer` no longer supertype of `TypedArray` types — v5.9 changed `ArrayBuffer` relationships; methods expecting `ArrayBuffer` now reject `Uint8Array`, `Buffer`, etc. Fix by accessing `.buffer` property or using specific `Uint8Array<ArrayBuffer>` types [source](./.skilld/docs/docs/handbook/release-notes/typescript-5-9.html.md#libdts-changes) - NEW: `import defer * as ns from "module"` — v5.9 syntax for deferred module evaluation; module loading deferred until namespace acce...