regular expression for a to z in jquery not working on mvc 5 : **my code is look like this. help me**


$('#form').validate({
            errorElement: "span", // contain the error msg in a span tag
            errorClass: 'help-block',
            ignore: "",
            rules: {
                CountryName: {                  
                    
                    required: true,              
                    regex: /^[a-zA-Z]+$/
                }            
            },
            messages: {
                CountryName:{ required: "Enter Country name",
                                 regex: "Enter Correct Country name",
                },
                
            },