This plugin will integrate AJAX commenting feature into your WordPress Blog. It uses the powerful JavaScript Framework jQuery to handle AJAX requests and jQuery Validation plugin by bassitance.de to validate comment form on the client side.
<h4>Feature Summary</h4>
<ul>
<li>Enable AJAX Commenting</li>
<li>Client Side Form Validation</li>
<li>Easily rolls back if JS disabled</li>
<li>Easily configure custom styles for messages</li>
</ul>
<a href="http://webdeveloperplus.com/wordpress/new-wordpress-plugin-wdp-ajax-comments/" rel="nofollow ugc">See plugin page for more details</a>

WDP AJAX Comments

This plugin will enable AJAX comment posting on your WordPress blog.

Afnan Abbasi

This plugin helps you add jQuery and Javascript code snippets only on specific pages and posts.
It works with all types of custom post types as well. Each script added to a page or post, will run only on that specific post.
Scripts can be added in a meta box when editing a page.
This plugin uses the wp_head() action hook, and adds the code to the header of the page.
Most of the themes using this hook, so it works on most of the themes.
Tested & works with Gutenberg.
<h4>Docs & Support</h4>
You will find more information about the plugin at the plugin <a href="https://justentrepreneurship.com/page-specific-scripts" rel="nofollow ugc">website</a>

Page Specific Scripts

Simple and easy to use wordpress plugin to add jQuery/JS Scripts only to specific pages.

WDP AJAX Comments vs Page Specific Scripts