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Developer tools · #purescript
PureScript implements row polymorphism to allow functions to operate on records containing at least a specific set of fields. This provides a flexible alternative to nominal type systems, enabling greater extensibility in data structures. When transitioning a codebase from a nominal approach to one utilizing row polymorphism, there is a design boundary regar
PureScript FFI and JavaScript modules: choosing a multi-argument calling convention When a PureScript module exposes a two-argument function to JavaScript through the FFI, the calling convention must be decided at the language boundary. The default expectation is a curried JavaScript export, but the standard library also provides Data.Function.Uncurried with
Goal Upgrade a small PureScript codebase from spago 0.12 to 0.13 while keeping the application online and avoiding any downtime. Constraints The project uses a custom dependency set that may be sensitive to snapshot changes. spago 0.13 introduces the resolver field in spago.dhall , replacing the older packages field. Build reproducibility and type‑level comp