Learn how lenses and prisms can help you deal with immutable types in F# and other programming languages. Immutable types provide greater safety when dealing with data, but they require nesting objects when you want to mutate a property. This can quickly become confusing with deeply nested objects. Lenses and prisms offer a solution to this problem by allowing you to update individual properties without having to recreate every single object in the chain. This article provides concrete examples in F# to show how lenses and prisms work and includes a sample at the end for those unfamiliar with F#. Follow William Barbosa on Medium to learn more about functional programming in .NET.
