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

function is_hexcolor(str)  
{  
 regexp = /^#?([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$/;  
    
        if (regexp.test(str))  
          {  
            return true;  
          }  
        else  
          {  
            return false;  
          }  
}  
  
console.log(is_hexcolor("#444"));  
  
console.log(is_hexcolor("#3333"));