从现有对象创建 Javascript 对象但更改其结构[关闭]

Question

所以基本上，我需要复制一份：

const fields = {
        username: {
            name: "userName",
            value: "",
            label: "Username"
        },
        
        email: {
            name: "postalCode",
            value: "",
            label: "Postal Code"
        },

        address: {
          name: "address",
          value: "",
          label: "Address"
        }
     
    }

并将其变成这样：（同时只能修改原始值中的值）

 const fields = {
      userName: "",
      postalCode: "",
      address: ""
    }

这可能吗？

我试过 Object.Assign, Object.fromEntries 但我得不到我需要的结果。