How do I convert JSON data to javascript object

Question

Can anyone tell me what I doing wrong please...

I am trying to convert JSON data to Javascript Object using jQuery's parseJSON

Here is my JSON data from the lang_file.json:

{"lang":{ 
 "welcome":"Welcome to renewals", 
 "policy_number":"Policy Number", 
 "policy_holder_dob":"Policy Holder Date of Birth" 
 } 
}

Here is my jquery code:

jQuery.getJSON("lang_file.json", function(data) { 
 var json2 = data.lang; 
 var obj = jQuery.parseJSON(json2); 
 alert(obj.welcome); 
});

Jquery version : jquery-1.4.2

Thanks...

• BoltClock: Anything wrong? Posting what errors there are would be helpful...
• Gabriele Petrioli: you do not need to reparse the json. Data parameter should hold the complete json object.

Answer 1

You should be able to access any of that data like so already...

data.lang.welcome;
data.lang.policy_number;
data.lang.policy_holder_dob;

Or you may find it necessary to do this...

data.lang['policy' + someVar];

• gringoLoco007: yeah I tried that from the start and worked, I was trying to make the call shorter, for example :: lang.policy_number :: lang being the object, thanks :)
• Matrym: if you're trying to make it shorter, do langObj = data.lang; then you can do langObj.policy_number

Answer 2

getJSON parses the response for you.

You don't need to call parseJSON at all.

Answer 3

Give this a try:

jQuery.getJSON("lang_file.json", function(data) { 
 alert(data.lang.welcome); 
});

Answer 4

var obj = JSON.parse(text);

This line easy to change the JSON data to javascript object