WordPress includes jQuery with core Core is the set of software required to run WordPress. The Core Development Team builds WordPress.. Most everyone knows this. But did you also know WordPress includes a great deal of other libraries for your use.
You should take the time to check the documentation on wp_enqueue_script().
But that list actually isn’t complete! For a complete list of registered files inspect `$GLOBALS[‘wp_scripts’]` in the admin UI UI is an acronym for User Interface - the layout of the page the user interacts with. Think ‘how are they doing that’ and less about what they are doing.. Registered scripts might change per requested page. You can also check out the massive amounts of files in wp-includes to see even more.
My point, though, is that 90% of the time, you don’t need ‘your own’ version of something. We have it.
Even datepicker folks (
Check if core works. If you call it right, most of the time it will.
If you’re using (or thinking of using) TimThumb in the repository, please read.
TimThumb has reached it’s end of life. As such, we strongly recommend you stop using it in your plugins as soon as possible. It’s not supported, it’s not maintained, and that means the 130ish of you who have it are going to have a bad day if another exploit is found because we will close your plugins.
Please note, we’re not retroactively banning it from the repository at this time, though that may change. Right now, we’re asking everyone to take the first step and find an alternative. All new plugins are being required to use something else.
In general, please keep an eye on your third party libraries. If they’re no longer supported, look for a replacement. If they’re out of date, update your plugins. This is the best way to keep your code secure and avoid those awful emails about how we closed your plugin A plugin is a piece of software containing a group of functions that can be added to a WordPress website. They can extend functionality or add new features to your WordPress websites. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. These can be free in the WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party.