What's the meaning of “=>” in TypeScript? (Fat Arrow)

Question

I just start to learn TypeScript, and I saw there is a lot of code using this sytax =>. I did some research by reading the Specification of TypeScript Versio

Answer 1

var MakePoint: () => {  
    x: number; y: number;  
};

MakePoint is a variable. It's type is a function that takes no arguments and produces numbers x and y. Now does the arrow make sense?