I want a function that gives the full name of prev month for any given month[not just current month]
Ex: prevMonth(August) = July; prevMonth(January)= December
.
I'm new to js and can't figure out how to use this array to get the result:
monthsarray: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]
Are expecting a simple solution like this?
var monthsarray = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]
function prevMonth(curMonth) {
var curMonthIndex = monthsarray.indexOf(curMonth);
var prevMonthIndex;
if (curMonthIndex == 0) prevMonthIndex = monthsarray.length - 1;
else if (curMonthIndex == monthsarray.length - 1) prevMonthIndex = 0;
else prevMonthIndex = curMonthIndex - 1;
return monthsarray[prevMonthIndex];
}
console.log(prevMonth("August"));
console.log(prevMonth("December"));