Higher order functions in JavaScript:
o Higher Order Functions are functions that perform operations on other functions.
o Higher-order functions are functions that make use of functions as either their argument or their return value.
o Functions that get passed in as parameters are callback functions.
o Functions can be passed into other functions as arguments.
o In JavaScript functions, map, filter and reduce are examples of built-in higher-order functions.
EXAMPLE:
Higher-order function that accepts another function as an argument:
OUTPUT:
Higher-order function that returns a function:
OUTPUT:
