What are some advanced techniques for using functions in programming?

What are some advanced techniques for using functions in programming?

Advanced techniques include higher-order functions, closures, currying, and memoization. Would you like to explore one in detail?

Can you explain closures?

Closures are functions that capture the lexical scope in which they were created, allowing them to access variables from that scope even when invoked outside of it.

How does currying work?

Currying transforms a function with multiple arguments into a series of functions that each take a single argument. This allows for partial application.

What is memoization?

Memoization is an optimization technique that stores the results of expensive function calls and returns the cached result when the same inputs occur again.

Can you give an example of higher-order functions?

Sure! A higher-order function is one that takes another function as an argument or returns a function. For example, map and filter are common higher-order functions.