VignetteEither
VignetteEither is a term used in programming documentation and teaching to describe a small, self-contained example that demonstrates how to work with an Either value. The concept combines the idea of a vignette—a brief, illustrative narrative or sample—with the Either data type, commonly used to represent a value that can be either a success (Right) or an error/failure (Left).
In languages that feature an Either type, such as Haskell, Scala, or TypeScript with a similar construct,
Use cases for VignetteEither include documentation generation, educational tutorials, and example-driven testing. They help readers grasp
Examples typically show a Left case such as an invalid input error, a Right case with a
See also: Either type, Left, Right, pattern matching, functional error handling.