CODEWITHSUNDEEP
javascriptjqueryregexjquery-validate
chuckd
chuckd

Reputation: 14540

Javascript returning a string as a regex for jquery validate add method

I have this jquery validate add method below with a specific regex.

What I want is to create a method that returns the regex, like in my second example, but the second example doesn't work. I get some error that says 'Object doesn't support property or method 'test'

if (scope.countryCode == "DE") {
  $.validator.addMethod('PostalCodeError',
    function(value) {
      return /^(?!01000|99999)(0[1-9]\d{3}|[1-9]\d{4})$/.test(value);
    }, 'Please enter a valid German postal code.');

  $("#PostalCode").rules("add", {
    PostalCodeError: true
  });
}

I want something like this below

$.validator.addMethod('PostalCodeError',
  function(value) {
    return GetCountryRegex().test(value);
  }, 'Please enter a valid postal code.');

$("#PostalCode").rules("add", {
  PostalCodeError: true
});


function GetCountryRegex() {
  if (scope.countryCode == "DE") {
    return '/^(?!01000|99999)(0[1-9]\d{3}|[1-9]\d{4})$/';
  }
  if (scope.countryCode == "AT") {
    return '/^\\d{4}$/';
  }
}

Upvotes: 1

Views: 157

Answers (1)

Matthew Herbst
Matthew Herbst

Reputation: 31983

So, in GetCountryRegex you're not actually returning RegEx, your returning strings.

Use new RegExp on the returned value to convert the strings to RegExp:

function GetCountryRegex() {
  if (scope.countryCode == "DE") {
    return '/^(?!01000|99999)(0[1-9]\d{3}|[1-9]\d{4})$/';
  }
  if (scope.countryCode == "AT") {
    return '/^\\d{4}$/';
  }
}

var regExp = new RegExp(GetCountryRegex());
regExp.test(...);

Upvotes: 3

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