Higher-Order Functions Functions are first-class,meaning they can be manipulated as values A higher-order function is: 1.A function that takes a function as an argument and/or 1.A function that returns a function as a return valueHigher-Order Functions Functions are first-class, meaning they can be manipulated as values A higher-order function is: 1. A function that takes a function as an argument and/or 1. A function that returns a function as a return value