在JQuery Form Validation正则表达式中定义空间

Question

I am validating a form using jQuery form validation, one of the field needs to be four digits space four digits, eg 1234 5678

I can get it to validate if I replace the space with a hyphen:

$.validator.addMethod("companynumber", function(value, element) {
var regexp = /^[0-9]{4}[-][0-9]{4}$/;
var strippedValue = value.replace(/\s/g, '');
return this.optional(element) || regexp.test(strippedValue);
},  "Enter a valid Company Number.");

But cannot find what I need to put in the regex for a single space between the digit blocks, can anybody help please?

Answer 1

Acheong87 is right that you can just get a space with /^[0-9]{4} [0-9]{4}$/ , but it looks like you are also stripping out spaces before you check against the regex. If you want the regex to match properly you shouldn't be using strippedValue to do the regexp.test.

So something like this should work:

$.validator.addMethod("companynumber", function(value, element) {
var regexp = /^[0-9]{4} [0-9]{4}$/;
return this.optional(element) || regexp.test(value);
},  "Enter a valid Company Number.");