Currying

Currying is a technique of transforming a function that takes multiple arguments into a sequence of functions, each taking a single argument and returning another function (until all arguments have been provided).

In simpler words: Currying breaks down a function of n arguments into n functions that each take one argument.

Example Without Currying:

function add(a, b, c) {
  return a + b + c;
}

console.log(add(1, 2, 3)); // Output: 6

Curried Version:

function curriedAdd(a) {
  return function (b) {
    return function (c) {
      return a + b + c;
    };
  };
}

console.log(curriedAdd(1)(2)(3)); // Output: 6