Browse Teach Curate

First-Class Functions

Functions are ordinary values: assignable to variables, passable as arguments, returnable from other functions, and storable in data structures. This is what makes callbacks, components-as-functions, and hooks-returning-setters expressible at all.

jeremy Video

First-Class Functions in JavaScript and Python: Assigning, Passing, Returning

First-class functions constitute a formal paradigm in programming languages where function literals serve as first-class citizens capable of being passed as arguments to other functions, returned fro…