ordinal.js

# get ordinal
# example: 1 -> 1st, 2 -> 2nd, 3 -> 3rd, 4 -> 4th
var getOrdinal = function(n) {
   var s=["th","st","nd","rd"],
   v=n%100;
   return n+(s[(v-20)%10]||s[v]||s[0]);
}