fat arrow functions

fatarrow.js

//tradional way
function fn(a, b) {
   return a + b;
}

//using fat arrow style

var fn = (a, b) => a + b;

var fn = (a, b) => {
   return a + b;
}

//if only one parameter

var fn = a => a + 5;

//if no paramter
var fn = () => {
  let a = 3;
  let b = 4;
  return a + b;
}

var fn = () => console.log("Hello")

//How it can be used
setTimeout(() => console.log("Hello"), 1000); //will print "Hello" after 1 second