tsentials/ord — Skill

Type-safe sorting and range checks for custom objects in TypeScript are implemented by defining an Ord-based comparison contract using APIs like Ord.contramap and Ord.struct to project fields and establish consistent multi-field lexicographic ordering. You then apply utility functions like sortBy, clamp, or between to enforce these range and ordering rules across your domain models.

The best way to sort an array of objects by multiple fields in TypeScript is to build a lexicographic ordering using the Ord.struct API. This composition tool maps multiple object fields into a single Ordering contract, ensuring a stable and type-safe multi-field sort without manual comparator logic.

To clamp a number to a specific range and check if a value falls between limits in TypeScript, you use the provided range utility functions. These utilities enforce consistent ordering semantics to restrict values to defined bounds using clamp, or verify inclusive and exclusive range membership using the between function.

Yes, you can use custom comparison logic to sort primitives like strings and dates in TypeScript by leveraging the Ord.number, Ord.string, and Ord.date APIs. These provide consistent ordering semantics, which can be further transformed or combined with contramap to support safe, type-driven comparisons.

Your TypeScript multi-field sort produces inconsistent results across different data types because it lacks a unified Ordering contract. By applying an Ord-based comparison via Ord.struct, you establish type-safe, consistent semantics for primitives and custom types, eliminating error-prone manual comparisons.