How to acces nested objects in array

Question

I am trying to access a specific field inside the nested array. My code is like this:

var array1 = [];

const data =  { [userId]: [{
             id: id,
             name: fullName,
             email: userEmail },
            ],
          };

array1.push(data);

If I print this:

console.log("index 0: ", array1[0]);

It gives this result:

index 0:  {
  buMqSZpEaKZABffDGNs5jzVK36Y2: [
    {
      id: '65',
      name: 'nameTest',
      email: 'myexmail@gmail.com'
    }
  ]
}

However, I would like to know how I can access the information inside the userId, like userId.name and be able to find a specific userId. For example, in the array1 find userId "aePoUZpkUnlAOMNBGNs5ynMD36L1" and display its information as if I did like this activeSockets[0]. or indexOf(). Most of the times I have tried accessing the fields inside it says Cannot read property '' of undefined. Any help will appreciated

Answer 1

You can find the object of the userid in the array.

var array1 = [];

var data =  { ['ABC123']: [{
     id: 1,
     name: 'john',
     email: 'john.doe@nomail.com'
      },
    ],
  };

array1.push(data);

let userId = 'ABC123';

let userObj = array1.find((x)=> x[userId] !== undefined);

if(userObj) {  // did the find return an object?
    let userData = userObj[userId][0];
    console.log(`name: ${userData.name}`);
    console.log(userData);
}
else {
    console.log(`user ${userId} not found.`);
}

By the way, it's not so common that a value would be used as a property name.
More often, such key is just a value of an objects property.

Which also makes the find or filter more straightforward.

For example:

var array1 = [];

array1.push({
         userid : 'ABC123',
         id: 1,
         name: 'john',
         email: 'john.doe@nomail.com'
      });

let userId = 'ABC123';
let userData = array1.find((x)=> x.userid === userId);

if(userData) {  // did the find return an object?
    console.log(`name: ${userData.name}`);
    console.log(userData);
}
else {
    console.log(`user ${userId} not found.`);
}