Question

In my code, I can get the object but not the value. How can I get the value of the .cups textbox? Thanks.

HTML:

<tr id="20">

      <td class="description">CHEESE,FONTINA</td>
      <td><input type="text" class="cups" value=""></td>
      <td><input type="checkbox" class="breakfast"></td>
      <td><input type="checkbox" class="lunch"></td>
      <td><input type="checkbox" class="dinner"></td>
      <td><input type="checkbox" class="snack"></td>
      <td><input type="checkbox" class="favorites"></td>
      <td><label class="addFood"><input type="button" class="input_text_custom input_button" value="Add"></label></td>

</tr>

JS:

$(document).ready(function () {

    $('.addFood').click(function () {

        var tr = $(this).parents('tr');

        var foodId = tr.attr('id');  // works
        var servings = tr.children('.cups');  // returns [object Object]
        var servings = tr.children('.cups').val();  // returns undefined
        alert(servings);

    });

});

Answer 1

The <input> is a grandchild of <tr>, not a child, so it won’t be selected by .children and you get a jQuery object which has no members when you try it (this is akin to an empty array).

Use .find instead, that operates on descendants.