function amountTocoins(amount, coins)   
{  
 if (amount === 0)   
  {  
     return [];  
   }   
 else  
   {  
     if (amount >= coins[0])   
       {  
        left = (amount - coins[0]);  
        return [coins[0]].concat( amountTocoins(left, coins) );  
        }   
      else  
        {  
         coins.shift();  
         return amountTocoins(amount, coins);  
        }  
    }  
}   
console.log(amountTocoins(46, [25, 10, 5, 2,1])); 