Validate multiple fields with same name jquery?

Question

I have multiple select inputs in my page that are dynamically created with same name.

My code:

<select name="area[]" id="area[]" class="area">
    <option value="">Select Area</option>
    <?  
     $cities = $this->city_model->get_all($posters->product_id);
         foreach($cities as $city) { ?>
           <option value="<?=$city->city_id?>"><?=$city->city_name?></option>
        <? } ?>
 </select>

I want that user select a value from each select input, I am using jQuery function like this:

 $('.area').each(function(){ 
if($(this).val() == "") {
  alert("please select Area");
}  return false;
});

$('.quantity').each(function(){ 
if($(this).val() == "" || $(this).val() == 0) {
  alert("please select Quantity");
  return false;
}
});
$('#form').submit();

i did same same with it, it is also working, but it also submits the form as well, even i restrict it at

 <input type="submit" name="something" id="something" value="something" onclick="checkType();return false;">

What is "not working"?

Johan
– Johan

2013-04-26 14:46:35 +00:00
Commented Apr 26, 2013 at 14:46 — Johan
– Johan, Commented Apr 26, 2013 at 14:46
Any errors in the JavaScript console?

Blazemonger
– Blazemonger

2013-04-26 14:47:13 +00:00
Commented Apr 26, 2013 at 14:47 — Blazemonger
– Blazemonger, Commented Apr 26, 2013 at 14:47

musefan · Accepted Answer · 2013-04-26 14:52:39Z

3

You are missing a close brace on your if statement. Try this:

$('.area').each(function(){ 
   if($(this).val() === "") {
      alert("please select Area");
      return false;
   }
});

EDIT: I re-added the return false part, as it is likely the OP only wants to show 1 alert regardless of how many items are invalid.

Here is a working example

edited Apr 26, 2013 at 14:52

answered Apr 26, 2013 at 14:47

musefan

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1 Comment

gdoron Over a year ago

== "" is true for 0, might be problematic.

gdoron · Accepted Answer · 2013-04-26 14:48:46Z

1

$('form').submit(function(){
    var unSelected = $('select').filter(function(){
        return this.value === "";
    }).length > 0;

    if (unSelected)
        alert('Error!');
});

answered Apr 26, 2013 at 14:48

gdoron

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2 Comments

Johan Over a year ago

Or var unSelected = $('select').filter(function(){ return !this.value; }).length; ?

gdoron Over a year ago

@Johan, !0 evaluates to true, which isn't suitable here.

AmanVirdi · Accepted Answer · 2014-10-28 05:14:07Z

0

Try this:

<script>$('.area').each(function() {
        if ($(this).val() == '') {
            alert("please select Area");
            return false;
        }
    });   
</script>

edited Oct 28, 2014 at 5:14

AmanVirdi

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answered Oct 28, 2014 at 4:34

Imtiaz Pabel

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