Question 244800 in Reactjs Question posted in
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Reactjs – Django rest framework and react Cannot read properties of undefined (reading '')

I am fetching some data with react from django rest framework and put them into state. And then pass them into another component with props. When I print them I get the object and it works perfectly. For example console.log(props.user1) gets me this:

Array(1)
0:
   {
     date_joined: 2023-09-06T16:07:37.214335Z"
     email: ""
     username: "t"
   }
...

But when I print props.user1.username I get

TypeError: Cannot read properties of undefined (reading 'username')
Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    Well the problem was way more simple.

    I had defined state like this:

    const [user,setUser] = useState()

    instead of this

    const [user,setUser] = useState({})


  2. 0

    it is look like:

    0: { date_joined: date, email: String username: String }

    if you want to get username, you have to use
    props.user1.0.username
    you can’t use
    props.user1[0]

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