CODEWITHSUNDEEP
jqueryregexjquery-validate
Apparently Im user2212428
Apparently Im user2212428

Reputation: 99

Finding a regex that allows only for a certain number range and nothing else

I am using the jQuery Validation plugin and on a field only want the user to have the opportunity to input only four numbers {1 or 2 or 3 or 4} respectively. 

$.validator.addMethod(
 "onetofourOnly",
    function(value, element) {
        // need to update here
        return value.match(/(?:[0-4]){0,1}/);
    },
    "Please enter a number from 1 to 4."
);

Here I call the rule:

$("#myform").validate({
  rules: {
    numberField: {
        onetofourOnly : true
    },
  }
});

My logic is wrong though, so what would be the approriate regex for specifying those four numbers I want and nothing else?

Upvotes: 1

Views: 1103

Answers (1)

Unihedron
Unihedron

Reputation: 11051

Just use this regex:

/^[1-4]$/

Here is a regex demo.

>>> var re = /^[1-4]$/
>>> re.test("1")
... true
>>> re.test("0")
... false

Upvotes: 1

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