Currying

Currying is a way of writing a function so that it can accept some parameters (arguments) separately, one at a time, instead of all at the same time. It's like ordering food at a fast food restaurant. Instead of telling the cashier that you want a hamburger, fries, and a drink all at the same time, you tell them that you want a hamburger first, then fries, and then a drink. It's the same idea with currying - instead of giving a function all of its arguments at the same time, you can give them to the function one at a time.