programming-examples/js/Vre1/Check whether a given value is hexadecimal value or not.js

    function is_hexadecimal(str)  
    {  
     regexp = /^[0-9a-fA-F]+$/;  
        
            if (regexp.test(str))  
              {  
                return true;  
              }  
            else  
              {  
                return false;  
              }  
    }  
      
    console.log(is_hexadecimal("ffffff"));  
      
    console.log(is_hexadecimal("fz5500"));