如何从javascript对象中删除键和值

Question

如果我有一个值为

的javascript对象

{"__v":0,"_id":"528277c808cab8ac2b000001","password":"password",
"userId":5,"userName":"Austinsss","$$hashKey":"00F"}

如何完全删除“$$ hashKey”：“00F”。

Answer 1

使用delete^(MDN)：

var foo = {"__v":0,"_id":"528277c808cab8ac2b000001","password":"password",
"userId":5,"userName":"Austinsss","$$hashKey":"00F"};

delete foo.$$hashKey;

如果您的键中包含奇数字符，也可以使用括号表示法：

delete foo['$$HashKey'];

Answer 2

怎么样

delete obj.$$hashKey

Answer 3

delete它！

delete objname["$$hashKey"];