Explain the concept of currying in JavaScript and provide an example.

Certainly, I'm glad you brought up the concept of currying in JavaScript, as it's a powerful aspect of functional programming that can significantly enhance the reusability and composability of code. Currying is a technique of transforming a function that takes multiple arguments into a sequence of functions, each taking a single argument. It allows us to create a higher-order function that returns another function for each argument in turn until all arguments have been applied. This approach can make code more flexible and expressive, enabling partial application of functions and facilitating more modular and maintainable code structures.

To clarify, let's consider an example to exemplify currying in action. Imagine we have a simple multiplication function that takes two arguments...