access data object in jquery ajax

hi,
if i have the following jquery function getCashBackTotalAmount() that produce the object as hilited in screenshot, how can I access the TotalCashBack value?  

function getCashBackTotalAmount(u_email){
    
    console.log('cashback value');
    
    $.ajax({
        url: 'userprofile/gettotalcashback',
        data : {email:u_email},
        dataType: 'json',
        success: function(data){
            console.log('success getTotalCashBack');
            console.log(data);
            
            var $total_amt = data.TotalCashBack;
            console.log($total_amt);
            $('.earning > span').replaceWith($total_amt);
            console.log(data.length);
            
        },error : function(){
            console.log("error getTotalCashBack");
        }
        
        });
}

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screenshot.png
heng tangPHP DeveloperAsked:
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GaryCommented:
So this is a JSON response - there is nothing wrong with your code but I suspect it is not json that is being returned
Post the data response here.
0
leakim971PluritechnicianCommented:
The error is no on this code
From the screenshot we see all the console output.
You're trying to read data outside this block

            console.log('success getTotalCashBack'); // you got it
            console.log(data); // you got it : [Object] > TotalCachback: "9.00" 
            
            var $total_amt = data.TotalCashBack;
            console.log($total_amt); // you got it : undefined
            $('.earning > span').replaceWith($total_amt);
            console.log(data.length); // you got it : 1

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replace :
var $total_amt = data.TotalCashBack;
by :
var $total_amt = data[0].TotalCashBack;
0

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