v2.0.0

2.0.0 (2026-07-20)

• V2 (#164) (9deba7e)

BREAKING CHANGES

• • ESM-only. CJS/UMD entry points removed; require("common-stuff") no longer works.
    httpErrorHandler removed — inline the middleware (it was a thin instanceof HttpError wrapper).
• HttpStatusCodes / HttpStatusReasons are const objects, not enums (required by erasableSyntaxOnly). Value reads are unchanged; the type HttpStatusCodes is gone — use (typeof HttpStatusCodes)[keyof typeof HttpStatusCodes] if needed.
• Array-only flatMap removed. The universal flatMap (iterable module) requires callbacks to return an iterable and only passes (item, index).
• parseSize returns number | undefined instead of -1.
• merge<A, B>(target, source): A & B — return type is inferred. Explicit merge(a, b) calls need to pass both generics or cast.
• hashCode integers changed (prefixed with typeof to avoid falsy collisions). Invalidate any persisted hashes.
• difference / intersection / union / shuffle now correctly return T[] for mutable inputs (v1 always returned ReadonlyArray due to overload order).
• isArray narrows readonly inputs to ReadonlyArray (v1 narrowed them to mutable Array); runtime switched to * * Array.isArray (fixes cross-realm).
• getByKey infers the return type from literal paths. Pass T explicitly for dynamic paths.