Find out the previous year date from current date in javascript

Question

I need to find out the previous year date from current date and then set as minDate in jQuery UIdatepicker in javascript

My date formaqt is dd-mm-yy

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Answer 1

var date = CALC.today(); //(function in my dev-enviro - gives today's date)
var year = formatDate(date, 'yyyy'); //year is 2016
year = parseInt(year);               //make sure '2016' becomes an integer
year = year -1;                      // var year is now: 2015.

//its been a while, but that's what I did from memory.