Partial Function

Definitions

1. A function derived from another function by fixing one or more of its arguments, producing a new function with fewer parameters. In Python, functools.partial enables this; in Haskell, all functions are curried and partial application is the default.

   In plain English: Taking a function that needs several inputs and locking in some of them ahead of time, so the resulting function needs fewer inputs.

   Example: "I created a partial function from the logger with the module name pre-filled so every call site doesn't have to repeat it."

Related Terms

• Algebraic Data Type
• Block
• Category
• Closure
• Lexical Scope
• Option
• Stale Closure
• Thunk
• Category Theory