배정문

var arr = [];   //good
var arr = new Array();  //bad

arr[i] = i;     //good
arr.push(i);    //bad

var obj = {};   //good
var obj = new Object(); //bad

obj.a = 1;  //good
obj["a"] = 1;   //bad

var str = "test";   //good
var str = new String("test");   //bad