Question 193821 in Jquery Question posted in
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Jquery – search for text in classes using filter

I have this html:

<td class="catName" data-bs-toggle="collapse" data-bs-target=".category1">A</td>
<td class="catName" data-bs-toggle="collapse" data-bs-target=".category2">B</td>
<td class="catName" data-bs-toggle="collapse" data-bs-target=".category3">C</td>

I want to use the filter function to find the class that has the innerText "A".

Trying with:

jQuery(".catName").filter(item => jQuery(item).text() == "A");

But it doesn’t work.

I am using Jquery. I have to use filter. And I have to use an arrow function.

Tags:

2

Answers


  1. 0

    1. Due to your markup being invalid stands nothing will work. You need to add some corresponding table elements.

    2. The first argument of filter is index, and item is the second argument (which is the opposite way native JS array methods work).

    In this example I’m filtering the cell with "A" and turning its background red.

    $(".catName").filter((index, item) => {
  return $(item).text() == "A";
}).css('background-color', 'red');
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
  <tbody>
    <tr>
      <td class="catName" data-bs-toggle="collapse" data-bs-target=".category1">A</td>
      <td class="catName" data-bs-toggle="collapse" data-bs-target=".category2">B</td>
      <td class="catName" data-bs-toggle="collapse" data-bs-target=".category3">C</td>
    </tr>
  </tbody>
</table>
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  2. 0

    At a minimum <td> elements need to be wrapped inside <table> element tags for it to make sense to the DOM.

    The other thing you need to change is that the JQuery filter() methods receives the index first, and the JQuery item as the second argument. So you need filter((i, item) =>

    $(".catName").filter((i, item) => $(item).text() == "A");

    See JSFiddle for full example:
    https://jsfiddle.net/Lexdp7rt/

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