function _getValue()

in trinidad-impl/src/main/javascript/META-INF/adf/jsLibs/Core.js [2246:2366]
96 lines of code
27 McCabe index (conditional complexity)

function _getValue(formElement)
{
  var shadowElem = formElement;
  var elementType = formElement.type;

  // When we're dealing with an array of elements, find the
  // real element type by looking inside the array.
  if (!elementType && formElement.length)
  {
    // See bug 3651045;  IE can put "fieldsets" in with
    // form elements!
    for (var i = 0; i < formElement.length; i++)
    {
      elementType = formElement[i].type;
      if (elementType != (void 0))
      {
        shadowElem = formElement[i];
        break;
      }
    }
  }

  if (elementType == "checkbox")
  {
    if (formElement.length)
    {
      for (var i = 0; i < formElement.length; i++)
      {
        // See above for why we check each element's type
        if (formElement[i].type == "checkbox" &&
            formElement[i].checked)
        {
          return formElement[i].value;
        }
      }
    }
    else
    {
      return formElement.checked;
    }
  }
  else if (elementType == "select-multiple")
  {
    var multiResult = new Array();
    for (var i = 0; i < formElement.length; i++)
    {
      if(formElement.options[i].selected)
      {
        multiResult[multiResult.length] = formElement.options[i].value;
      }
    }
    return (multiResult.length > 0) ? multiResult : "";
  }
  else if (elementType.substring(0,6) == "select")
  {
    formElement = shadowElem;
    var selectedIndex = formElement.selectedIndex;

    // selectedIndex exists and non-negative
    if (selectedIndex != (void 0) &&
        selectedIndex != null &&
        selectedIndex >= 0)
    {
      var opt = formElement.options[selectedIndex];
      var value = opt.value;
      if (!value)
      {
        // If there's no value, it could be for two reasons:
        //  (1) The user has only specified "text".
        //  (2) The user explicitly wanted "value" to be empty.
        // We can't really tell the difference between the two,
        // unless we assume that users will be consistent with
        // all options of a choice.  So, if _any_ option
        // has a value, assume this one was possibility (2)
        for (var i = 0; i < formElement.options.length; i++)
        {
          if (formElement.options[i].value)
            return value;
        }

        // OK, none had a value set - this is option (1) - default
        // the "value" to the "text"
        return opt.text;
      }

      return value;
    }

    // no selected value
    return "";
  }
  else if (elementType == "radio")
  {
    if (formElement.length)
    {
      for (var i = 0; i < formElement.length; i++)
      {
        // See above for why we check each element's type
        if (formElement[i].type == "radio" &&
            formElement[i].checked)
        {
          return formElement[i].value;
        }
      }
    }
    else
    {
      if (formElement.checked)
      {
        return formElement.value;
      }
    }

    // no selected value
    return "";
  }
  else
  {
    return formElement.value;
  }
}