Date Format

[Former Community Member]

Hi,



I need to compare an entered date with the current date.

Also this topic came up several times in the forum, I could not find a proper solution. My current coding looks like this:



x = new Date();

currDate = parseFloat((x.getYear()+1900).toString() + (x.getMonth()+1).toString()+(x.getDate()).toString());



enteredDate = parseFloat((this.rawValue).replace(/-/g,""));



if (currDate < enteredDate)

{

xfa.host.messageBox ("Invalid date! Please enter a date before the current date");

this.rawValue = "";

}



But in order to compare the dates, I still need to format the month in MM, if the entered month is below 10 (Same for day). How can I change the formatting from e.g. "5" to "05"?

[gkaiseril]

Why not just compare the number of days from epoch date for the comparison?

[Former Community Member]

Hi Geo,



can you please provide me some coding?



Thx, Claudi

[Former Community Member]

Why not use Acrobat's built-in date functions in order to parse a date:




var objToday = new Date();

var objDate = util.scand("dd-mmm-yyyy", this.rawValue); // uses the current local time!



console.println(objToday - objDate); // true (as of may-31)



You may have to adjust the date pattern. Have a look at:


Acrobat JavaScript Scripting Reference (PDF, 7.1M)

On page 641+, you find the available date patterns.

[gkaiseril]

With FormCalc one can use the "Date2Num()" function to obtain the number of days from the epoch date.



Date2Num(d1[, f1[, k1]]) Returns the number of days since the epoch, given a date string.



One needs to specify the date string and format and the local (language) identifier is optional.