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JavaScript/jQuery: Reorder input/textarea by value

Posted on 2013-02-04
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Last Modified: 2013-02-05
Using JavaScript / jQuery, how can I sort a group of an input and a textarea by the value of the textarea?

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Demo</title>

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type="text/javascript">

$(document).ready(function() {

 $('#alpha').click(function() {
  alert("Change Order to Apple, Peach, Zoo");
 });

});

</script>
</head>
<body>


<div id="fields">
    <p class="item">
        <a class="itemDown"></a>
        <a class="itemUp first"></a>
        <input autocomplete="off" name="Text_healthcare_Client_List_xa0" value="2400195" type="text"><br />
        <textarea rows="9" cols="99" name="Text_healthcare_Client_List_xb0">Zoo</textarea><hr />
    </p>
    <p class="item">
        <a class="itemRemove"></a>
        <a class="itemDown"></a>
        <a class="itemUp"></a>
        <input autocomplete="off" name="Text_healthcare_Client_List_xa1" value="2402014" type="text"><br />
        <textarea rows="9" cols="99" name="Text_healthcare_Client_List_xb1">Apple</textarea><hr />
    </p>
    <p class="item">
        <a class="itemRemove"></a>
        <a class="itemDown"></a>
        <a class="itemUp"></a>
        <input autocomplete="off" name="Text_healthcare_Client_List_xa2" value="2400173" type="text"><br />
        <textarea rows="9" cols="99" name="Text_healthcare_Client_List_xb2">Peach</textarea><hr />
    </p>
</div>

<input type="button" id="alpha" value="Sort" />

</body>
</html>

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Question by:hankknight
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4 Comments
 
LVL 82

Accepted Solution

by:
leakim971 earned 500 total points
ID: 38853569
Test page : http://jsfiddle.net/Kp9FD/
Using :
$(document).ready(function() {

 $('#alpha').click(function() {
     $(".item").each(function() {
         sortDem($(this).prevAll(".item:eq(0)"), $(this))
     })
 });

});

function sortDem(prev, curr) {
    if(prev.length>0) {
        var pVal = $("textarea", prev).val();
        var cVal = $("textarea", curr).val();
        if(pVal>cVal) {
            curr.insertBefore(prev);
            sortDem(curr.prevAll(".item:eq(0)"), curr); 
        }
    }
}

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Author Comment

by:hankknight
ID: 38854893
Thanks!  I modified your code slightly to make it case-insensitive.


function sortDem(prev, curr) {
    if(prev.length>0) {
        var pVal = $("textarea", prev).val().toLowerCase().trim();
        var cVal = $("textarea", curr).val().toLowerCase().trim();
        if(pVal>cVal) {
            curr.insertBefore(prev);
            sortDem(curr.prevAll(".item:eq(0)"), curr); 
        }
    }
}

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LVL 82

Expert Comment

by:leakim971
ID: 38854924
0
 
LVL 16

Author Comment

by:hankknight
ID: 38857028
Ooops, the order is not preserved when the form is submitted.  I asked a related question here:
http://www.experts-exchange.com/Programming/Languages/Scripting/JavaScript/Jquery/Q_28021103.html
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