by Anthony Fu @antfu
TypeScript 4.0 is recommended in this challenge
Currying is the technique of converting a function that takes multiple arguments into a sequence of functions that each take a single argument.
For example:
const add = (a: number, b: number) => a + b
const three = add(1, 2)
const curriedAdd = Currying(add)
const five = curriedAdd(2)(3)The function passed to Currying may have multiple arguments, you need to correctly type it.
In this challenge, the curried function only accept one argument at a time. Once all the argument is assigned, it should return its result.
