jquery验证器方法检查值是否与给定值匹配并显示错误[关闭]

Question

I need a basic validation on postcode that is display error if empty and also display error if it matches the given value.

var zip_cde = "1234,5095,2356";
postcode: {
       required: true,
       number: true,
       minlength: 4
      },
 <input type="text" name="postcode" id="postcode" placeholder="5095" >

i want that if the postcoe matches the zip_cde, jquery validator shall display error.

Any help is really appreciated.

Answer 1

var zip_cde = "1234,5095,2356";
postcode: {
    required: true,
    number: true,
    postalcode: true
    },

jQuery.validator.addMethod("postalcode", function(postalcode, element) {
return this.optional(element) || (postalcode.match(/^([0-9]{4})$/) && $.inArray(postalcode, zip_cde));
}, "Please enter a valid postcode");

 <input type="text" name="postcode" id="postcode" placeholder="5095" >