Operatorille

Operatorille is a term used in the context of computer programming and software development, particularly in the realm of functional programming and certain programming languages. It refers to a function or operator that takes another function as an argument and returns a new function. This concept is fundamental to higher-order functions, which are functions that operate on other functions, either by taking them as arguments or by returning them.

The term "operatorille" is derived from the word "operator," which in this context refers to a function that performs operations on its arguments. The suffix "-ille" is a common suffix in French and other Romance languages, often used to form nouns from verbs, and has been adopted in the programming community to denote functions that operate on other functions.

Operatorilles are commonly used in functional programming languages such as Haskell, where they enable powerful abstractions and code reuse. For example, the map function is an operatorille that takes a function and a list, and returns a new list with the function applied to each element. Similarly, the compose function is an operatorille that takes two functions and returns a new function that is the composition of the two.

In summary, operatorille is a term used in functional programming to describe a function that takes another function as an argument and returns a new function. It is a key concept in higher-order functions and enables powerful abstractions and code reuse in functional programming languages.