Nodejs Number Calculate ordinalize()

Method Source Code

// ordinalize returns the ordinal string corresponding to integer:
///* ww w.j ava2s . c o  m*/
//     (1).ordinalize()    // => '1st'
//     (2).ordinalize()    // => '2nd'
//     (53).ordinalize()   // => '53rd'
//     (2009).ordinalize() // => '2009th'
//     (-134).ordinalize() // => '-134th'
Number.prototype.ordinalize = function() {
    var abs = Math.abs(this);
    
    if (abs % 100 >= 11 && abs % 100 <= 13) {
        return this + 'th';
    }
    
    abs = abs % 10;
    if (abs === 1) { return this + 'st'; }
    if (abs === 2) { return this + 'nd'; }
    if (abs === 3) { return this + 'rd'; }
    
    return this + 'th';
};

// Alias of to_s.
Number.prototype.toParam = Number.prototype.toString;

Number.prototype.toQuery = function(key) {
   return escape(key.toParam()) + "=" + escape(this.toParam());
};

Related

1. mult()

   Number.prototype.mult = function() {
       var w = this;
       for (var i = 0; i < arguments.length; i += 1)
           w *= arguments[i];
       return w;
   var n = 12;
   console.log(n.mult(2, 3));
   console.log((5).mult(2, n));
   ...
   

2. next()

   Number.prototype.next = function(){
       return this+1;
   };
   

3. normalize(num)

   Number.prototype.normalize = function(num) {
     return this*180/num;
   };
   

4. ordenar()

   #!/usr/bin/env node
   Number.prototype.ordenar = function () {
     return this.toString().split('').sort(up).join('');
   };
   function up (a,b) {
     return a > b ? 1 : a < b ? -1 : 0;
   var x = 0;
   var done= false;
   ...
   

5. ordinal()

   Number.prototype.ordinal = function () {
       return this + (
           (this % 10 == 1 && this % 100 != 11) ? 'st' :
           (this % 10 == 2 && this % 100 != 12) ? 'nd' :
           (this % 10 == 3 && this % 100 != 13) ? 'rd' : 'th'
           );
   var ResetInput = function(){
       jQuery('input, textarea').each(function() {
   ...
   

6. parseNumber(x)

   function parseNumber(x){
     if(!isNaN(x)) return x;
     return parseFloat(x.substring(1, x.length - 1));
   

7. percentage(val)

   Number.prototype.percentage = function(val){
     return this * (val/100);
   };
   

8. plural(a, b, c)

   Number.prototype.plural = function (a, b, c)
     if (this % 1)
       return b
     var v = Math.abs(this) % 100
     if (11 <= v && v <= 19)
       return c
     v = v % 10
     if (2 <= v && v <= 4)
   ...
   

9. pluralA(ary)

   Number.prototype.pluralA = function (ary)
     return this.plural(ary[0], ary[1], ary[2])