Removing empty Input Elements from a form - php

Question

I have a simple form that goes on to create all the form and validation requirements for codeigniter. What I want to do is filter out any empty inputs prior to serialization so that I do not create form inputs and form validation set rules. I am at a loss as to how to go about this. Where I have the alert in the Jquery is where I want to remove any empty inputs(again prior to serialization). At this point what I am using does not detect empty form fields. Without the detection code the entire system works fine. Here is what I am using
<h1>Field Name</h1>
<form action="Form.php" onsubmit="return false;" id="form" method="post">
<input type="text" name="v1" id="v1" />
<input type="text" name="v2" id="v2" />
<input type="text" name="v3" id="v3" />
<input type="text" name="v4" id="v4" />
<input type="text" name="v5" id="v5" />
<input type="text" name="v6" id="v6" />
<input type="submit" name="send" id="send" value="Send" />
</form>
<hr />
<script>
$(function(){
$('#send').click(function(){
---------------------------------------
$(":input").each(function() {
if($(this).val() === "")
alert("Empty Fields!!"); //using alert just to see if empty fields are detected.
return false;
});
-----------------------------------------
var data = $('#form').serialize();
$.ajax({
type: "POST",
data: data,
url: "Form.php",
success: function(msg){
if(msg){
$('#display').html(msg).show();
}else{
$('#display').text("<p>nothing came back</p>");
}
}
});
return false;
});
});
I am simply trying to avoid printing out empty form fields
<p>
<label for=""></label> <br />
<input type="text" name="" id="" /> <br />
<label class="error" id=""> This field is required</label> <br />
<p/>
Thank you for your time

Answer 1

This will remove all the text fields which have a value of length 0:
$('#send').click(function(){
$(':input[type="text"]').filter(function(e){
if (this.value.length===0){
return true;
}
}).remove();
});
example: http://jsfiddle.net/niklasvh/ZBSyX/

Answer 2

You should use a regex expression using \s as the search query. So /^(\s)*$/ as the regex and just make sure input does not match this.
Sorry but I am not familiar with Jquery or I would write the code out exactly.

Answer 3

$('#send').click(function(){
//---------------------------------------
$(":input").each(function() {
if($(this).val() === "")
alert("Empty Fields!!"); //using alert just to see if empty fields are detected.
return false;
});
And you're not getting an error from this? The first lambda's scope isn't closed.
Use Firebug to highlight errors that you might be getting and post those.

Answer 4

To hide elements that have no value assigned:
$('input:text[value=""]').hide();
But, of course, if a value="x" attribute is provided in the html this will result in the element being shown.