html javascript php zip code data validation

Question

I am adding a data validation to my code. I want to make sure the event title is not blank, and the zip code entered is valid. The javascript does not work. Can you tell me why?

<form name="form1" action="organize.php" onSubmit="return validateform1();" method="post" enctype="multipart/form-data">            

    <div class="form-element">
        <label for="event_title">Event Title</label>
        <input type="text" name="event_title" id="dob" />
    </div>

    <div class="form-element">
        <label for="zip">Zip Code</label>
        <input type="text" name="zip" id="dob" />
    </div>

    <script language="javascript">

        function validateform1(){        

            var zipcode = /^\+?([0-9]{2})\)?[-. ]?([0-9]{4})[-. ]?([0-9]{4})$/;        
            if(document.form1.event_title.value==""){
                alert("Enter a title");
                return false;
            }        
            else if((!document.form1.zip.value.match(zipcode)){  
                alert("wrong zip format");  
                return false;  
            }  
    </script>

</form>

What if they live in a country that doesn't have ZIP codes? Hope this is local-only? — user399666
– user399666, Commented Mar 5, 2014 at 9:45
@NoobEditor the format is either 5 digits or 5+4 digits: 99999 or 99999-9999 — Aaron F
– Aaron F, Commented Mar 5, 2014 at 9:49
Probably doesn't help that your ZIP field has id="dob". Anyway, what do you mean by "The javascript does not work."? What happens when it runs, do you get an error reported in the browser's console, or does something happen but the wrong thing, or...? — nnnnnn
– nnnnnn, Commented Mar 5, 2014 at 9:49

Awlad Liton · Accepted Answer · 2014-03-05 10:01:44Z

2

you have missed closing ) in this line:

else  if((!document.form1.zip.value.match(zipcode))  {

should be :

else  if((!document.form1.zip.value.match(zipcode)))  {

or:

else  if(!document.form1.zip.value.match(zipcode))  {

Always you should see browser console.you can see hint to get rid of your issues.

edited Mar 5, 2014 at 10:01

answered Mar 5, 2014 at 9:52

Awlad Liton

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nnnnnn · Accepted Answer · 2014-03-05 09:53:06Z

1

Probably doesn't help that your ZIP field has id="dob", but I think the main issue is that your function is missing a closing }, and your else if (( has an extra (. Try this:

function validateform1() {

    var zipcode = /^\+?([0-9]{2})\)?[-. ]?([0-9]{4})[-. ]?([0-9]{4})$/;
    if (document.form1.event_title.value == "") {
        alert("Enter a title");
        return false;
    } else if (!document.form1.zip.value.match(zipcode)) {
        alert("wrong zip format");
        return false;
    }
}

answered Mar 5, 2014 at 9:53

nnnnnn

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