Nodejs Number to Ordinal Format toOrdinal()

Method Source Code

Number.prototype.toOrdinal = function() {
   var n = this % 100;
   var suffix = ["th", "st", "nd", "rd", "th"];
   var ord = n < 21 ? (n < 4 ? suffix[n] : suffix[0]) : (n % 10 > 4 ? suffix[0] : suffix[n % 10]);
   return this + ord;
};

Related

1. toOrdinal()

   Number.prototype.toOrdinal = function() {
     var s = ['th','st','nd','rd'];
     var v = this%100;
     return this + (s[(v-20)%10]||s[v]||s[0]);
   };
   

2. toOrdinal()

   Number.prototype.toOrdinal = function() {
       var n = this % 100,
           suffix = ['th', 'st', 'nd', 'rd', 'th'],
           ord = n < 21 ? (n < 4 ? suffix[n] : suffix[0]) : (n % 10 > 4 ? suffix[0] : suffix[n % 10]);
       return this + ord;
   };
   

3. toOrdinal()

   Number.prototype.toOrdinal = function() {
       var n,
           s = ["th","st","nd","rd"],
           v = n % 100;
       return n + (s[(v - 20) % 10] || s[v] || s[0]);
   };