Testing LIVE Testing a New WP Theme
This is a great plugin to test a new WP Theme without letting your site’s visitors see what you are currently testing. I find this a good alternative to XAMPP (unless you really want to test a new theme in your desktop or laptop).
Try Theme Test Drive by Prelovac.com.
https://www.prelovac.com/vladimir/wordpress-plugins/theme-test-drive
Change a WordPress Theme in the Database
by Melody Reyes
Last Updated on June 12, 2020 by Melody Reyes
WordPress themes can usually be changed and managed from your dashboard in WordPress. If you cannot access you WordPress due to an issue with your theme or after an upgrade, you can change your theme from the database.
You can learn the easy steps in changing a WordPress theme in the database here: https://ph.godaddy.com/help/change-a-wordpress-theme-in-the-database-26331.
jQuery conflicts and WordPress Themes
jQuery conflicts and WordPress Themes: https://msyk.es/blog/prevent-jquery-wordpress-theme/