Explicit Errors & Absence
Replace unchecked exceptions, silent null propagation, and trial-and-error form submissions with typed containers that either fail fast or accumulate errors across fields simultaneously.
pipelined
A TypeScript toolkit for writing code that means exactly what it says.
Resilient Async & Concurrency
Eliminate in-flight race conditions and unhandled rejections. Lazy tasks thread AbortSignal automatically, Graph schedules dependency DAGs with sibling cancellation, Op manages retries and concurrency policies, and EventBus coordinates typed event streams.
Eliminate Impossible States
Replace contradictory boolean flags with mutually exclusive union states. Machine enforces compile-time state transitions, RemoteData tracks 4-stage request lifecycles, These captures partial success, and Brand prevents nominal ID mixups without runtime overhead.
Deep Optics & Clean State
Update deeply nested state trees in a single line without spread boilerplate (Lens). Inject runtime dependencies without prop drilling (Reader), and isolate modular sub-state transitions (State.focus).
Linear Composition First
Logic reads top-to-bottom in the exact order it executes. Enriched with function combinators and high-performance collection utilities (Arr, Rec, Dict, Uniq, Str, Num, BigNum, Json) that compose cleanly in pipelines without intermediate variable boilerplate.
Zero Jargon, Zero Dependencies
Built for TypeScript developers. Plain discriminated unions, zero external dependencies, 100% tree-shakeable, and clear descriptive APIs without algebraic jargon.