CODEWITHSUNDEEP
javascriptjqueryregexvalidation
Arda
Arda

Reputation: 6946

Check field with at least one or more digits and including characters

I'm making a contact form which will be submitted with jQuery and I'm stuck on one simple validation.

I need to validate a field, which has to have at least x integers.

How can I do this?

p.s: please don't suggest validation plugin.

Thanks,

edit: This is what I've tried, but it's wrong I guess.

var numbercheck = /^(\w\d{7,14})?$/;

this is jsdiffle:

http://jsfiddle.net/4WqY9/

Upvotes: 0

Views: 307

Answers (4)

dotty
dotty

Reputation: 41523

Try this

function hasUpTo5(strin){
        if( string.replace(/[^0-9]/g, '').length <= 5){
            return true
        }else{
            return false;
        }
    }

    alert( hasUpTo5("fhsfbgurb3utn55nun44") );

Upvotes: 1

niksvp
niksvp

Reputation: 5563

Use regex providing the range of numbers you can afford in your field

like \d{5,10} // Here 5 -10 is the range of numbers

function testContact(contact){
 contact = contact.replace(/[a-z]*/g,"");
 return (contact == contact.match(/\d{5,10}/))?true:false;
}

Upvotes: 2

Paul Alan Taylor
Paul Alan Taylor

Reputation: 10680

I'd write a small function that will do the job. Note that this function will return false if you have any non-int elements in the inputText :-

function HasRequiredIntegers(inputText, requiredIntegers) {
    var elems = inputText.split(/\s+/);
    var intCount = 0;
    var nonIntCount = 0;

    for (i = 0; i < elems.length; i++) {
        if (((parseFloat(elems[i]) == parseInt(elems[i])) && !isNaN(elems[i]))) {
            intCount++;
        }
        else {
            nonIntCount++;
        }
    }

    return (intCount >= requiredIntegers && nonIntCount == 0);
}

Upvotes: 1

Lazarus
Lazarus

Reputation: 43124

To match a number of integers using a regex you'd need something like:

^((\d*)\s*)*$

Upvotes: 1

Related Questions