not able to convert JSON string to javascript object -

- 

    var jsonobj='[{"rmanumber":null,"orderreferencenumber":"referene45","orderstatus":"pending","daterequested":null,"dateapproved":null,"segateaddress":null,"billingaddress":null,"shippingaddress":null,"returnforcredit":{"requested":null,"received":null,"shipped":35,"credited":45,"invoiceamount":null},"returnforexchange":{"requested":null,"received":null,"shipped":35,"credited":45,"invoiceamount":null},"totals":null}]'     var parsedjson = eval('(\'+jsonobj+\')');         var result=parsedjson.result;     var count=parsedjson.count;     alert('result:'+result+' count:'+count);

in alert giving undefined :undefined

1st thing :

var parsedjson = eval('(\'+jsonobj+\')');

should 

var parsedjson = eval('('+jsonobj+')');

2nd thing :
i don't see result or count object json string

3rd thing :
data in json in array, if object result there in objects, in array should accessed parsedjson[0].result


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