Regardless of your religious beliefs, you are probably aware that Easter Sunday occurs on a sliding scale. This is because Easter is a moveable feast and the date is determined by a lunisolar calendar.
Searching for Easter yields a handful of results. Sure quite a few are related to adding easter eggs to your code, but how many modules do we really need to calculate the date of Easter?
The answer is two, we only need two. One that calculates the Easter date without
any dependencies and one that uses
moment.js. Both of which are in the top
five of the search results.