Created
          November 17, 2014 15:46 
        
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    Adds ordinal suffix to an integer
  
        
  
    
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  | // assume positive integers as parameters | |
| function getDigit(n, d) { | |
| return parseInt( n / Math.pow(10, d - 1), 10 ) % 10; | |
| } | |
| function nth(n) { | |
| var d1 = getDigit(n, 1); | |
| var d2 = getDigit(n, 2); | |
| n = "" + n; | |
| if (d1 === 1 && d2 !== 1) { | |
| return n + "st"; | |
| } | |
| if (d1 === 2 && d2 !== 1) { | |
| return n + "nd"; | |
| } | |
| if (d1 === 3 && d2 !== 1) { | |
| return n + "rd"; | |
| } | |
| return n + "th"; | |
| } | 
  
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