Arrays

[bobbybrown69]

I need to know if the value of elms is Null and if Null don't include it in the array. For example if the value of elms["liner_Year4_" + vid] is Null do not include it in the array. Does anyone know how to do this?

var elms = document.forms[0].elements;
var lts =
elms["liner_Year4_" + vid].style,
elms["liner_Year2_" + vid].style,
elms["liner_Make_" + vid].style,
elms["liner_Model_" + vid].style,
elms["liner_Series_" + vid].style,
elms["liner_BodyStyle_" + vid].style,
elms["liner_VINFull_" + vid].style,
elms["liner_VINLast8_" + vid].style,
elms["liner_Miles_" + vid].style,
elms["liner_RetailPrice_" + vid].style,
elms["liner_InternetPrice_" + vid].style,
elms["liner_StockNum_" + vid].style
];

 

[trollacious]

You can try something like this:

var elms = document.forms[0].elements; 
var lts = new Array(), li = 0;
var ellist = ["Year4", "Year2", "Make", "Model", "Series", "BodyStyle", "VINFull", "VINLast8", "Miles", "RetailPrice", "InternetPrice", "StockNum"];

for (var ei = 0; ei < ellist.length; ei++)
  {
  var onestyle = elms['liner_' + ellist[ei] + '_' + vid].style;
  if (onestyle != null)
    {
    lts[li] = onestyle;
    li++;
    }
  }

Lee

 

[tsuji]

Controlling .style would not eliminate the problem of the element being inexistent which in this context would provoke runtime page error. If the element exists, style object always does. Hence it would be better script it like this controlling the element itself.
[tt]
for (var ei = 0; ei < ellist.length; ei++)
{
var oneelem = elms['liner_' + ellist[ei] + '_' + vid];
if (oneelem)
{
lts[li] = oneelem.style;
li++;
}
}
[/tt]