Moving an element in pure javascript?

Question

PHP

Good evening. Help me to understand. There are comments in the form of a list that are displayed like this

<li id="comment-23" level="2" class="comment-1">
     <ul class="children children-23">
          <span></span>
     </ul>
</li>
<li id="comment-24" level="2" class="comment-23">
     <ul class="children children-24">
          <span></span>
     </ul>
</li>

and should come out like this

<li id="comment-23" level="2" class="comment-1">
     <ul class="children children-23">
          <span></span>
          <li id="comment-24" level="2" class="comment-23">
               <ul class="children children-24">
                    <span></span>
               </ul>
          </li>
     </ul>
</li>

That is, it must be inherited. I implemented all this in jquery

$('#comments-list > .commentlist > li').each(function () {
            var parentClass = '.' + $(this).attr('class'),
                parent = '#' + $(this).attr('class')+'>'+'ul'+'>'+'span';
            $(parentClass).insertAfter(parent)
        })

But during the page load, you can see how the dom is being rebuilt. How can I not achieve the same result in pure javascript
Here is what is in javascript

var array = document.querySelectorAll('#comments-list > .commentlist > li');
        array.forEach(function (e) {
            var parentClass = '.' + e.getAttribute('class');
            var parent = '#' + e.getAttribute('class') + '>' + 'ul' + '>' + 'span';
            parentElem = document.querySelectorAll(parent);
            elem = document.querySelectorAll(parentClass);
        });

Answer 1

sudo update-alternatives --set php /usr/bin/php7.2

Answer 2

Why update? Just install the new version and change the site config in nginx

Answer 3

sudo update-alternatives --set php /usr/bin/php7.2
sudo update-alternatives --set phar /usr/bin/phar7.2
sudo update-alternatives --set phar.phar /usr/bin/phar.phar7.2
sudo update-alternatives --set phpize /usr/bin/phpize7.2
sudo update-alternatives --set php-config /usr/bin/php-config7.2