Shortening a Javascript if-else structure

Question

The code I have is:

 var level = function (d) {
    if (value(d) > median + stdev) {
        return 1;
    } else if (value(d) > median) {
        return 2         


        

Answer 1

This solution is nicer, but I would not recommend using it in production as it is kind of confusing:

4 - [median + stdev, median, median - stdev].filter(function(e, i, a) {
    return value(d) > e;
}).length