// edit::
// It is about the concept of currying so changed to a 
// better way of writing
// I'll leave the first version at the bottom 
// for the comments that are already in!

const multiply = a => b => c => a*b*c
console.log(multiply(1)(2)(3)) // 6

// initial code block

function multiply(a) {
    return (b) => {
        return (c) => {
            return a * b * c
        }
    }
}
console.log(multiply(1)(2)(3)) // 6