JavaScript Object property always returns undefined [duplicate]

Answer 1

You have an array containing an object. The properties you are trying to access are members of the object, not the array.

You must first get a reference to the object before you access its properties.

registration[0].handle

Answer 2

You are accessing the member of an object.

Do it like this way

success: function(registration) {
        $.each(registration, function(index, data) {
            var handle = data.handle;
            console.log('id is getting now ' + handle);
        });
    }

Answer 3

it is because you are having array so to access it try

  registration[0].handle

EXAMPLE

CASE 1

registration =  [ { id: '16B0C2FC-A008-4E8A-849B-DB1251C8CABD', handle: '123', userId: 'ABC123'} ];
console.log(registration[0].handle);

CASE 2

registration = { id: '16B0C2FC-A008-4E8A-849B-DB1251C8CABD', handle: '123', userId: 'ABC123'};
console.log(registration.handle);

Answer 4

Try this

var registration=[ { id: '16B0C2FC-A008-4E8A-849B-DB1251C8CABD', handle: '123', userId: 'ABC123'} ]

alert(registration[0].handle)

DEMO

Answer 5

Yes you first need to access array element then you can find object

console.log(registration[0].handle);