addDecades
A function that adds and subtracts decades from a Date
object.
addDecades(new Date(2016, 5, 1), 5); // 2066-6-1
addDecades(new Date(2016, 5, 1), -5); // 1966-6-1
Parameters
value Date
offset number
The number of decades to add or subtract from the date.
Returns
Date - A new Date
instance.