function number_test(n)  
    {  
       var result = (n - Math.floor(n)) !== 0;   
         
      if (result)  
        return 'Number has a decimal place.';  
       else  
         return 'It is a whole number.';  
      }  
      
    console.log(number_test(25.66));  
      
    console.log(number_test(10));