jQuery regex failing to display latest changes

I am running into some issues with my custom jQuery snippet that is supposed to dynamically display the results. Each H2 tag contains an image, and I want to ensure the image is positioned correctly next to the word "test." Here is the script in question:

<h2 id="test">This is a test <img class="test" src="https://www.iconsdb.com/icons/preview/red/new-xxl.png" alt="test" width="31" height="16" /></h2>

Here is the jQuery code I have written:

$('h2 img').each(function(){
var = test $(this).html();
$(this).html(test.replace(/<h2>(.*?)\s<img[^>]+src="([^">]+)(.*)\/><\/h2>/gi, '<h2>$1<img class="test" src="https://www.iconsdb.com/icons/preview/red/new-xxl.png" alt="test" width="31" height="16" /></h2>'));
]);

The objective is to adjust the positioning of the image beside the word test, without any extraneous spaces according to the regex pattern used.

The expected output should resemble the following (with the image tag next to the word "test"):

<h2 id="test">This is a test<img class="test" src="https://www.iconsdb.com/icons/preview/red/new-xxl.png" alt="test" width="31" height="16" /></h2>

I aim to achieve this functionality dynamically. Any assistance would be greatly appreciated.

Answer №1

To eliminate the space following the word 'test', directly modify the text node instead of manipulating the HTML as a string:

let nodes = $('h2').contents().filter((i, node) => node.nodeType === 3);
Array.from(nodes).forEach(n => n.nodeValue = n.nodeValue.trim());
h2 img {
  width: 31px;
  height: 16px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<h2>This is a test <img class="trial" src="https://www.iconsdb.com/icons/preview/red/new-xxl.png" alt="verification" /></h2>
<h2>This is another experiment <img class="attempt" src="https://www.iconsdb.com/icons/preview/red/new-xxl.png" alt="try" /></h2>
<h2>foo bar <img class="test" src="https://www.iconsdb.com/icons/preview/red/new-xxl.png" alt="attempt" /></h2>

It's best to address the issue at its root rather than depending on JS as a solution for markup problems.

-- Update --

Can this be converted to a regular function instead of arrow functions?

let nodes = $('h2').contents().filter(function(i, node) {
  return node.nodeType === 3;
});
Array.from(nodes).forEach(function(n) {
  return n.nodeValue = n.nodeValue.trim();
});

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