table cell input returns as undefined

Question

I am using jquery 2 I need to populate a multidimensional array with values in a table

Here is my code (First column is hidden)

html:

<table  id="datatab"  border="1">
    <tbody>
        <tr role="row" class="odd">
            <td class="sorting_1" style="display: none;">2087971</td>
            <td>1</td>
            <td>1</td>
            <td>aaaa</td>
            <td>John Smith</td>
            <td><input type="text"  name="value1" value="1"></td>
            <td><input type="text"  name="value2" value="2"></td>
            <td><input type="text"  name="value3" value="3"></td>
            <td></td>
         </tr>
        <tr role="row" class="even">
            <td class="sorting_1" style="display: none;">2087972</td>
            <td>2</td>
            <td>2</td>
            <td>bbbb</td>
            <td>Peter Parker</td>
            <td><input type="text"  name="value1" value="4"></td>
            <td><input type="text"  name="value2" value="4"></td>
            <td><input type="text"  name="value3" value="4"></td>
            <td></td>
        </tr>
    </tbody>
</table>
<button id="GetData">Get data</button>

jquery:

<script type="text/javascript">

    $("#GetData").click(function (event) {
        debugger;
        event.preventDefault();
        var TableData = new Array();
        $('#datatab tbody tr').each(function (row, tr) {
            TableData[row] = {
                "id": $(tr).find('td:eq(0)').text()
                , "value1": $(tr).find('td:eq(5)').find("input").value
                , "value2": $(tr).find('td:eq(6)').find("input").value
                , "value3": $(tr).find('td:eq(7)').find("input").value
            }
        });


    });
</script>

I populate the first id column successfully in my array with the line

$(tr).find('td:eq(0)').text()

However the values of the inputs are undefined

What am I doing wrong?

Answer 1

You need to use the val() method of the jQuery objects, as they do not have value property like the underlying DOMElements. Also note that you can use map() to build the array. Try this:

$("#GetData").click(function(e) {
    e.preventDefault();
    var tableData = $('#datatab tbody tr').map(function(row, tr) {
        var $row = $(tr);
        return {
            id: $row.find('td:eq(0)').text(),
            value1: $row.find('td:eq(5) input').val(), 
            value2: $row.find('td:eq(6) input').val(),
            value3: $row.find('td:eq(7) input').val()
        }
    }).get();

    // work with tableData here...
});

Working example