javascript删除关键字无法正常工作

Question

我觉得这真的很奇怪，我是json通过 http 发送的。

{
   "foo":"bar",
   "foo2":"bar2",
   "name":{
       "firstName":"Joff",
       "middleName":"Ramirez",
       "lastName":"Tiquez"
   }
}

在服务器上我正在执行这些命令：

var data = req.body; // the json from http
console.log('data', data); // the data now has the req.body's value 
delete data.name; // <-- here's the delete
console.log('data', data); // the name object will obviously be deleted
console.log('req.body', req.body); // the name on the req.body was deleted too. Wtf?

req.body.name因此，当我尝试在程序的其他部分使用 时，name现在已经消失了。那是delete应该如何工作吗？

Answer 1

var data = JSON.parse(JSON.stringify(req.body));
delete data.name; // <-- here's the delete

现在当你做一个

console.log('req.body', req.body); // This won't be deleted. 

正如@Dellirium指出的，对象是通过引用传递的，reqBody是与数据相同的对象