Arrow function examples

arrow-function-ES6.js

// ES5 way 
var square = function(x){
  return (x*x);
}

// ES6 way 
var square = (x) => { return x*x };
// if expression has only 1 line we can even drop the braces
var square = x => x*x;


var players = ['Dhoni', 'Yuvi', 'Virat'];
// ES5 way 
var len = players.map(function(el){ return el.length; });

//ES6 way 
var len = players.map(el => el.length);