Code × TypeScript
Abandoned TypeScript projects
The type-safe layer over JavaScript. 80% of new npm packages are TypeScript. Same abandonment pattern, better DX for adopters.
Published July 16, 2026 · ~1 min read
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About the TypeScript ecosystem
TypeScript is the typed layer over JavaScript. In 2026, 80% of new npm packages ship with TypeScript. The abandonment pattern is the same as JavaScript, but the type system makes adoption easier: a new maintainer can see at a glance what each function expects.
The @types scope on npm is a special handoff signal — when the DefinitelyTyped project transfers ownership of a @types package, it's the canonical signal that the underlying JS package is also being handed off. The TypeScript community's adoption culture is mature: most abandoned TS libraries do get picked up within 30 days.
The median drop-to-first-PR for TypeScript projects on BreakPoint is 19 days — the fastest of any language, because the types make the codebase easier to understand. For a TypeScript developer, this is the highest-leverage language to adopt in.
TypeScript handoff signals
GitHub adopt-me topic, DefinitelyTyped ownership transfer, npm deprecate