Using Scripts

Karthik Mohan

I would like to write a script which calclautes the differnce between two date fields and display the result as number of days in a custom text field.

Field 1 : start date

Field 2 : end date

Field 3 . total number of days.

Expected result:

Filed 3 = field 2 - field 1

i used the following script

<script type="text/javascript">
var startdate = new Date();
var enddate = new Date();
var days = 0;
startdate = document.getElementById('Start Date').value;
enddate = document.getElementById('End Date').value;
days = enddate.getTime()-startdate.getTime();
document.getElementById('Total Number of Days').values = days;
</script>

i used the follwing link as the reference :

https://confluence.atlassian.com/jirakb/how-to-display-a-field-based-on-another-field-s-selection-649921383.html

Tarun Sapra

You can in the "post-function" calculate the different in dates of two fields and then populate the required custom field in the post-function transition, thus it will save you from writing JS as things happen in the postfunction.