What is Gradual Typing | Jeremy Siek(For a Japanese translation, go here) Gradual typing is a type system I developed with Walid Taha in 2006 that allows parts of a program to be dynamically typed and other parts to be statically typed. The programmer controls which parts are which by either leaving out type annotations or by adding them in. This article gives a gentle introduction to gradual typing. The following were our motivatio
