Steps for iterating over the "users" list and retrieving the contents of each "name" element

I'm attempting to iterate over the "users" array and retrieve the value of each "name".

Although the loop seems to be functioning correctly, the value of "name" is returning as "undefined" four times.

JavaScript:

for(var i = 0; i < customer.users.length; i++){
            console.log(customer.users.name)
        }

JSON:

{
  "users":[
    {
      "user_id": "123",
      "name": "test",
      "xp_amount": 25
    },
    {
      "user_id": "456 ",
      "name": "test1",
      "xp_amount": 25
    },
    {
      "user_id": "789",
      "name": "test2",
      "xp_amount": 25
    },
    {
      "user_id": "101",
      "name": "test3",
      "xp_amount": 25
    }
  ]
}

Answer №1

To retrieve the name attribute of the current user object within a loop based on the index i, you can use the following code:

for (var i = 0; i < customer.users.length; i++) {
   console.log(customer.users[i].name)
}

Alternatively, you can achieve this using the forEach() method like so:

customer.users.forEach(function (user) {
  console.log(user.name);
});

In this scenario, there is no need for the index since the user variable already represents the necessary object.

With ES6, you can further simplify this process with even less code:

customer.users.forEach(({name}) => console.log(name));

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