/*JS*/ const $form = $("{YOUR_FORM_CLASS}"); $.validator.addMethod("letters", function(e, a) { return this.optional(a) || e == e.match(/^[a-zA-Z\s]*$/); }), $form.validate({ rules: { name: { required: !0, minlength: 2, maxlength: 45 }, countrycity: { required: !0 }, email: { required: !0, email: !0 } }, messages: { name: "Please specify your name", email: "Please specify a valid email address", countrycity: "Field cannot be blank" }, }); /*JS*/