JS-Object and Property的删除用法

 1 var myObject = {name:‘jimmy‘, age:12, height:123}

 2 delete myObject["jimmy"];

 3 delete myObject.age;

 4 with (myObject) {
 5    delete height;
 6 }
 7 
 8 // and an object
 9 var myObject = new Object();
10 delete myObject;
11 
12 var myObj2 = {};
13 myObj2 = null;