jquery: numeric input only, but also restrict number of characters

Question

I am using the following jquery function to only allow numeric input. It works fine, but client now wants to limit input to 8 numeric values. Is there away, using the code below to also restrict the number of characters?

$(document).ready(function () {
    $('input.numberinput').bind('keypress', function (e) {
        return !(e.which != 8 && e.which != 0 &&
                (e.which < 48 || e.which > 57) && e.which != 46);
    });
});

Thank you in advance.

Just add a && (this.value.length >= 8); in your current return statement and it should work fine. — palaѕн
– palaѕн, Commented May 9, 2013 at 13:49
Could you not just put a maxlength attribute on the <input> tag? — Anthony Grist
– Anthony Grist, Commented May 9, 2013 at 13:58

Amit · Accepted Answer · 2013-05-09 13:43:39Z

4

Try this

$(document).ready(function () {
$('input.numberinput').bind('keypress', function (e) {
   if(this.value.length>= 8) 
          {
            alert('Maximum limit is 8'); return false;
          }
    return !(e.which != 8 && e.which != 0 &&
            (e.which < 48 || e.which > 57) && e.which != 46);
});

});

answered May 9, 2013 at 13:43

Amit

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Comments

kwelsan · Accepted Answer · 2013-11-15 07:11:42Z

0

You can "maxlength" to restrict user

answered Nov 15, 2013 at 7:11

kwelsan

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Comments

Naftali · Accepted Answer · 2013-05-09 13:41:47Z

-1

Just check this.value.length, for example:

if(this.value.length >= 8) {
   alert('maximum of 8 characters.');
}

answered May 9, 2013 at 13:41

Naftali

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