Accessing Array Uncaught TypeError: Cannot read property of undefined

Question

I want to access the request_uuid from my jquery post, but whatever I try doesn't work. I keep getting this error message:

Uncaught TypeError: Cannot read property 'request_uuid' of undefined

This is my array:

Array(
[status] => 201
[response] => Array
    (
        [api_id] => 6562c748-0366-11e5-84ff-22000ac89064
        [message] => call fired
        [request_uuid] => efa98dad-8869-4b72-ad99-a149f914bda5
    ))

I am trying to access it like this:

console.log(data.response['request_uuid']);

How should I access it to get the request_uuid?

try with this console.log(data.response[0]['request_uuid']); — Nishit Maheta
– Nishit Maheta, Commented May 26, 2015 at 5:29
sorry non of the above works! i keep getting an error message — jhon dano
– jhon dano, Commented May 26, 2015 at 5:39
ok then as Leo answered if both is array then use console.log(data[0].response[0]['request_uuid']); . or update your answer with proper array as answered — Nishit Maheta
– Nishit Maheta, Commented May 26, 2015 at 5:40

Leo Caseiro · Accepted Answer · 2015-05-26 05:37:48Z

1

If your data is an array and your response also, you must to parse the first child(0), before that:

[] = Array():

var data = [{
    'status': 201,
    'response': [{
        'api_id': "6562c748-0366-11e5-84ff-22000ac89064",
        'message': "call fired",
        'request_uuid': "efa98dad-8869-4b72-ad99-a149f914bda5"
    }]
}];

console.log(data[0].response[0]['request_uuid']);

answered May 26, 2015 at 5:37

Leo Caseiro

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4 Comments

Nishit Maheta Over a year ago

@jhondano proper array means . array in proper javascript format as leo mentioned in answer :)

Leo Caseiro Over a year ago

@jhondano because your server side sends an array, it means you can have more than one data object, like data[0], data[1] and so on. Same for your response object, like response[0], response[1]. A good way to understand it, is calling console.log(data). Open it on Chrome Dev Tools(or similar) and You'll see when it's an array, and when it's a property of a object

jhon dano Over a year ago

yes thanks for your reply... actually thats exactly what am doing the array posted above is comming from console.log(data). I am confused how can i get my array in proper jquery format?

Leo Caseiro Over a year ago

@jhondano It's actually a Javascript Object which in your case, the serverside responds as an array. Try remember, every time you read Array(), you can have 1 or more, so you must to refer as an array. Maybe this theory will help you spring.io/understanding/JSON

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