Question

Im new on GM.
Iv’e run into an problem on an array segment. Here is the code:

var A1_rest= '';
var A1reset_go          = false;
var auctiontyp = 0

var myJson              = '{"d":[["","","y","ZAR","1","49517","6458, 8270, 8270, 8270, 7635",null,"1.40","6458","0:13:30","","12","","C","30",null],["y","-00:00","y","ZAR","2","49593","6458, 6458, 6458, 6458, 6458",null,"2.92","6458","0:13:37","","12","","L","12","Ve4mYdrvkkQMKxBH1\/1VMtDTCDQBRspg5jB8jjY08zg="],["","","y","ZAR","3","49058","7456, 9216, 6458, 5153, 7456",null,"194.40","7456","0:00:31","","1100","","T",null,null],["","","y","ZAR","4","49597","2935, 6554",null,"1.22","2935","0:01:16","","12","","T",null,null],["","","y","ZAR","5","49590","4440, 0518, 5343, 2625, 4848",null,"0.95","4440","0:15:58","","5","","L",null,null],["","","y","ZAR","6","49591","4848, 4440, 4440, 0518, 2625",null,"1.81","4848","0:16:05","","12","","L",null,null],["","","y","ZAR","7","49595","6458",null,"5.55","6458","0:04:13","","55","","T",null,null],["","","y","ZAR","8","49596","",null,"2.90","NONE","0:04:35","","29","","T",null,null],["","","y","ZAR","9","49496","6458, 2427, 2427, 7863, 5845",null,"2.56","6458","0:06:07","","10","","B",null,null],["","","y","ZAR","10","49524","6458, 2427, 7863, 7863, 5845",null,"1.67","6458","0:06:00","","5","","B",null,null],["","","y","ZAR","11","49539","6458, 2427, 7863, 7863, 0764",null,"2.02","6458","0:04:25","","10","","B",null,null]]}'
var jsonObj             = $.parseJSON (myJson);

//--- The JSON should return a 2-D array, named "d".
var arrayOfAuctions     = jsonObj.d;

//--- Loop over each row in the array.
$.each (
    arrayOfAuctions,
    function (rowIndex, singleAuctionData) {

        //--- Print the 7th column.
          console.log ('Row: ' + (parseInt (rowIndex) + 1) + ' Column: 7  Value: ' + singleAuctionData[6]);
  //up to here its fine


  auctiontyp=parseInt (singleAuctionData[4]);
   if (auctiontyp== 1)

     {

   A1_rest=singleAuctionData[16];
       alert(A1_rest);
       alert(singleAuctionData[16]);
        //2 alerts not the same...?
       if (A1_rest != 'null')
         {alert('doing incorrectly');
          A1reset_go=true;
          };
        else
          {alert('success1');
           }
       alert('check5.1');
       alert(A1reset_go);
       if (A1_rest == 'null') and (A1reset_go==true)
         {alert('should also not run but does');
          A1reset_go=false; 
          A1_start=singleAuctionData[8];
         };
         else 
         {alert('success2');
          };
    };

my current problem is on :”A1_rest” and “singleAuctionData[16]”

I thought “singleAuctionData[16]” will be a text value of “null” , but it isnt, it is some other value, although, on an alert it gives an output of “null”. I’m unsure how to test for it. In this scenario, on the array in the first segment, (which im testing) it should execute “success1” and “success2”. On the second segment of the array, if i run the same test , it should only alert “doing incorrectly” and “success2”.
Can someone please help me? Thanks in advance.
Ludwig

Answer 1

You are expecting a “text value of null”, but I think the actual value is just null, or nothing, rather than the text 'null'.