将2个字段传递到标题中的键，React-CSV

Question

与现有问题有关。 -csv 。我正在做一些事情，遇到了同一问题。再次询问，因为没有正确的答案。 标题的以下代码。 - 键：“ user.firstname + user.lastName”不起作用，并且字段为空。请帮助如何使此工作！ tia！

代码：

headers = [
{
  label: "id",
  key: "user.id"
},
{
  label: "Agent Name",
  key: "user.firstName + user.lastName"
},
{
  label: "Agent Email",
  key: "user.email"
},
{
  label: "Agent Phone",
  key: "user.phoneNumber"
},
{
  label: "Agent Commission",
  key: "agentComission"
},
{
  label: "Company Commission",
  key: "companyComission"
},
{
  label: "Total Sale",
  key: "sale"
}
];

数据格式示例：

data = [
  {
    id: 1,
    firstnamename: "name ",
    lastname: "lastname",
    email: "[email protected]",
    phoneNumber: 123456789,
    agentComission: 'agent comission',
    companyComission: 'company comission',
    sale: 'sale',
  },
  {
    id: 2,
    firstnamename: "name",
    lastname: "lastname,
    email: "[email protected]",
    phoneNumber: 123456789,
    agentComission: 'agent comission 2',
    companyComission: 'company comission 2',
    sale: 'sale 2',
  },
];