[es6] for .. of 기본 사용법

es6_for_of.js

var data = [{name:"won","age:"35},{name:"seo",age:"39"},{name:"kim",age:"42"}];
for(human of data){
  console.log( human.name ); // won , seo , kim
};


// 참고 (for 기본구문)
for(var i=0;i<data.length;i++){
  console.log( data[i].name ); // won , seo , kim
};