optics-ts

optics-ts provides type-safe, ergonomic, polymorphic optics for TypeScript:

• Optics allow you to read or modify values from deeply nested data structures, while keeping all data immutable.
• Ergonomic: Optics are composed with method chaining, making it easy and fun!
• Polymorphic: When writing through the optics, you can change the data types in the nested structure.
• Type-safe: The compiler will type check all operations you do. No any, ever.

Features

optics-ts supports lenses, prisms, traversals, removing items from containers, and much more! See the documentation for a tutorial and a detailed reference of all supported optics.