http://www.freecodecamp.com/altaf933 's solution for Bonfire: Roman Numeral Converter

bonfire-roman-numeral-converter.js

// Bonfire: Roman Numeral Converter
// Author: @altaf933
// Challenge: http://www.freecodecamp.com/challenges/bonfire-roman-numeral-converter
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function convert(num) {
  
  var numBer = new Array();
  var strNumeral=num.toString();
  
  
  numBer = strNumeral.split('');
  var lentNumeral = strNumeral.length;
 
  var appendNumeralM ='';
  var appendNumeralC ='';
  var appendNumeralX ='';
  var appendNumeral ='';
  
  var mCount = 0;
  var cCount =0 ;
  var xCount = 0;
  var nCount = 0;
  lentNumeral=num.toString().length;
  while(num > 0)
    {
     // lentNumeral=num.toString().length;
      if(num >= 1000){
        appendNumeralM+='M';
        num-=1000;
        //lentNumeral=num.toString().length;
        //appendNumeralM
      }else if(num <= 999 && num >=100){
        cCount++;
         appendNumeralC+='C';
         num-=100;  
         lentNumeral=num.toString().length;
        
         if(cCount == 9)
            {
                appendNumeralC = 'CM';
            }else if(cCount == 4)
            {
                 appendNumeralC = 'DC';
            }else if(cCount == 5)
            {
                appendNumeralC = 'D';
            }
        
      }else if(num <= 99 && num >=10){
          xCount++;  
          appendNumeralX+='X';
          num-=10;
        //xCount++;
         lentNumeral=num.toString().length;
          if(xCount == 9)
            {
               appendNumeralX = 'XC';
            }else if(xCount == 4)
            {
                 appendNumeralX = 'XL';
            }else if(xCount == 5)
            {
                appendNumeralX = 'L';
            }
        
      }else if(num <= 9){
        nCount++;
              appendNumeral+='I';
              num-=1;
              lentNumeral=num.toString().length;
            if(nCount == 9)
              {
                  appendNumeral = 'IX';
              }else if(nCount == 4)
              {
                 appendNumeral = 'IV';
              }else if(nCount == 5)
              {
                appendNumeral = 'V';
              }
        
       }
    } 
  return appendNumeralM+appendNumeralC+appendNumeralX+appendNumeral;
}
convert(999);