Is there a way to choose the following element after $(this) in the sequence?

I've got this snippet of code that I'm working with:

$("td").on("click", function(){
  var result = $(this).closest('table').siblings('form').find('input[name="inputname"]').attr('value');
  alert(result);
});
td {
  cursor: pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tbody>
    <tr>
        <td>click</td>
    <tr>
</tbody>
</table>
<form>
<input name = 'inputname' value = "10">
</form>
<form>
<input name = 'inputname' value = "12">
</form>

Currently, when click is clicked on, it correctly alerts 10. However, I have a slight concern about using .siblings('form') because the second form is also within the siblings scope of the table. I only want to select the form that is directly under the table, and not the second form.

The output is correct, but I am looking for an alternative to using .siblings(form) in this situation. Is there another way to accomplish this in jQuery?

In other words, how can I rewrite this in jQuery?

$(this).closest('table')./* next form */.find('input[name="inputname"]').attr('value');

Answer №1

findSiblings('form') provides dual matches for the given HTML example. This occurrence is due to the call of attr at the end of the chain, resulting in a single outcome as per the documentation:

The .attr() function retrieves the attribute value solely for the first element within the matched set.

Additionally, keep in mind that findSiblings examines preceding elements for matches; hence, if there was a form before the table, it would identify the input box in that location.

To ensure forward-only and singular match identification, utilize next('form').first() instead of siblings('form').

Answer №2

Trust your intuition, as it is often right. There may come a time when your developer wants to nest elements within each other, causing the program to malfunction.

To avoid this issue, using custom data attributes like data-* would be beneficial:

$("[data-click]").on("click", function() {
  var target = $(this).data("click");
  var result = $("[data-target='"+target+"']").find("[name=inputname]").val();
  alert(result);
});
[data-click] { /* an innovative approach */ 
  cursor: pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
  <tbody>
    <tr>
      <td data-click="form_1">click</td>
    <tr>
  </tbody>
</table>

<form data-target="form_1">
  <input name='inputname' value="10">
</form>

<form data-target="form_2">
  <input name='inputname' value="12">
</form>

Consider assigning the data-target attribute to the input element for better organization!

Answer №3

How do you feel about this?

$("td").on("click", function(){
  var outcome = $(this).closest('table').next('form').siblings('form').find('input[name="inputname"]').attr('value');
  alert(outcome);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tbody>
    <tr>
        <td>click</td>
    <tr>
</tbody>
</table>
<form>
<input name = 'inputname' value = "10">
</form>
<form>
<input name = 'inputname' value = "12">
</form>

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