In application development, we use scripts and style files from third-party open source libraries, WordPress core, and the files created from scratch for our own application requirements. So, it very important to understand how to load and work with these files properly. When scripts and styles are not used properly, we have to face some issues as listed:
- Scripts and styles of one plugin could create conflicts with scripts and styles of another plugin.
- Possibility of duplicate file inclusion.
- Application might try to use the scripts before they are included.
We can use the WordPress recommended techniques for loading of scripts and styles to avoid such issues. WordPress recommends developers use wp_enqueue_scripts for the frontend, and the admin_enqueue_scripts function for the backend loading of scripts and styles. So, we have to use following syntax to add the files correctly...