在我的反应原生项目中显示 object 和 axios 给出未定义

Question

I was trying to get request data from PHPMyAdmin and then output it on my react native project, and I use response.data.username, and yet I get undefined.

 const getInfo = () => { axios.get("https://luxrealest.com/includes/user_registration.php").then( (response) => { console.log(response.username); setDataInfo(response.data.username + " " + response.data.email); }) } getInfo()

 <script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.24.0/axios.min.js" integrity="sha512-u9akINsQsAkG9xjc1cnGF4zw5TFDwkxuc9vUp5dltDWYCSmyd0meygbvgXrlc/z7/o4a19Fb5V0OUE58J7dcyw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

Expected

Object {
  "": Object {
    "email": "myke@myke.com",
    "id": "11",
    "username": "myke",
  },
  "1": Object {
    "email": "aisosa.erharuyi11@gmail.com",
    "id": "12",
    "username": "General.Bigman",
  },
  "2": Object {
    "email": "amiatorjay@gmail.com",
    "id": "13",
    "username": "Jaycee",
  },
}

Answer 1

Given the shape of your data you need to iterate over this object like this:

 for (let key in response.data) {
     setDataInfo(response.data[key].username + " " + response.data[key].email);
 }

This of course will call setDataInfo 3 times for your data. If you want only a specific user you will need to add additional logic.