Use regular expressions to filter special characters in js to check whether all input fields contain special symbols

1.

function containSpecial( s ){

                var containSpecial = RegExp(/[(\ )(\~)(\!)(\@)(\#) (\$)(\%)(\^)(\&)(\*)(\()(\))(\-)(\_)(\+)(\=) (\[)(\])(\{)(\})(\|)(\\)(\;)(\:)(\')(\")(\,)(\.)(\/) (\)(\?)(\)]+/);

                return ( containSpecial.test(s) );

}

 

2. matches all symbols except AZ az 0-9

.((?=[\x21-\x7e]+)[^A-Za-z0-9])