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European Date Compose Error


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I am using a rule from this site to convert 13-Oct-15 dates to October 13, 2015. It is working correctly, but when there is no data in the "GIFT_DATE" field I get this error "uncaught exception: Error in function "DateFromString": Could not convert "" to a valid date."


Is there something I can add to the rule so that I don't get the error for the empty "GIFT_DATE" fields. It makes it harder to catch real errors. The rule is below:


var str = Field("GIFT_DATE");


var MonthNameAbbrs = [ "jan", "feb", "mar", "apr", "may", "jun",

"jul", "aug", "sep", "oct", "nov", "dec" ];


var month_name_part = 0;

var parts = str.replace(/-/g,'/').split('/');

for (var i = 0; !month_name_part && i < parts.length; i++)


if (isNaN(parseInt(parts)))


for (var m = 0; m < MonthNameAbbrs.length; m++)


if (ToLower(parts).substr(0,3) == MonthNameAbbrs[m])


parts = m + 1;

month_name_part = i + i;







if (month_name_part)


var mpart = month_name_part - 1;

var mval = parts[mpart];

parts.splice(mpart, 1);

parts.splice(0, 0, mval);



var date = DateFromString(parts.join('/'));

return FormatDate(date, "lm d, yyyy");

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