Jquery is incapable of eliminating a div

I have a form where I am dynamically adding actions. Within a table, there are rows of positions that applicants have applied for. When users click on the offer position button, I want to insert offer fields for submission and updating. While I can successfully insert the fields, I am facing an issue when trying to empty the div 'addapptrans' where the form is generated upon clicking the cancel transaction button. Below is the code snippet. I believe it's a simple fix that I'm overlooking.

<head>
<script type="text/javascript">

    $(function(){
        $(".offerposition").click(function(){
            var row = $(this).closest('tr').find('td:nth-child(1)').text();

            alert('You clicked on ' +row);
            $("#addapptrans").empty();
            $("#addapptrans").append(
                $("<input>").attr('type','hidden').attr( 'value',row).attr('Name','Mchposid'))
            .append(
                $("<input>").attr('type','submit').attr( 'value','Complete Offer').attr('id','completeoffertrx').attr('name','completeoffertrx').addClass("buttonlarge buttonmargin")
            ).append(
                $("<input>").attr('type','button').attr( 'value','Cancel Transaction').attr('id','canceloffertrx').attr('name','canceloffertrx').addClass("buttonlarge buttonmargin")
            );

        }
        )
    }
    );

    $(function(){
        $("#canceloffertrx").click(function(){
         $("#addapptrans").empty();   

        })  
    })
</script>
</head>
<body>

<form >

    <div id="addapptrans"></div>
    <p class="posttitle">Positions applied For</p>
    <table class="tabpositions">

        <tbody>
        <tr>
            <th class="position">Position</th>
            <th class="department">Department</th>
            <th class="dateapp">Date Applied</th>
            <th class="appdate">Offer?</th>
        </tr>

        <tr>
            <td style="display: none;">2281</td>
            <td>Building Service Worker - Part time</td>
            <td>Environmental Services</td>
            <td>08/13/2001</td>
            <td><input type="button" class="offerposition" value="Offer Position"></td> 
        </tr>                
        </tbody>
    </table>

</form>

Answer №1

In the following code snippet:

$(function(){
    $("#canceloffertrx").click(function(){
        $("#addapptrans").empty();
    })  
})

The code runs into an issue where it tries to bind a click handler to #canceloffertrx before it actually exists on the page. As a result, the handler is attached to zero elements since the selector does not match any present elements.


To resolve this issue, you can attach the click handler to either the document or the closest parent that is currently available instead:

$('#addapptrans').on('click', '#canceloffertrx', function(){

This approach specifies that when a click event occurs on the #addapptrans element and the actual target matches #canceloffertrx, the corresponding event handler will be triggered.

Alternatively, you can associate the click handler at the time of creating the button like so:

$("<input>")
  .attr('type','submit')
  .attr('value','Complete Offer')
  .attr('id','completeoffertrx')
  .attr('name','completeoffertrx')
  .addClass("buttonlarge buttonmargin")
  .click(function() { ... });

Lastly, here's some styling advice :) Particularly when chaining jQuery methods, consider placing each method call on a separate line for improved readability.

Moreover, keep in mind that the attr() function can accept an object as an argument to set multiple attributes within a single call:

$("<input>")
  .attr({
    type: 'submit',
    value: 'Complete Offer',
    id: 'completeoffertrx',
    name: 'completeoffertrx'
  })
  .addClass("buttonlarge buttonmargin")
  .click(function() { ... });

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