JavaScript使用delete删除属性

删除单个

var o = { 'Age': 1 , 'Name': 'lbw'};
delete o.Age;
//delete o['Name'];
console.log(o);

删除所有

var o = { 'Age': 1, 'Name': 'lbw' };
for (var key in o) {
    delete o[key];
}
console.log(o);