What is 'Currying'?

Question

I\'ve seen references to curried functions in several articles and blogs but I can\'t find a good explanation (or at least one that makes sense!)

Answer 1

There is an example of "Currying in ReasonML".

let run = () => {
    Js.log("Curryed function: ");
    let sum = (x, y) => x + y;
    Printf.printf("sum(2, 3) : %d\n", sum(2, 3));
    let per2 = sum(2);
    Printf.printf("per2(3) : %d\n", per2(3));
  };