Although I’ve been doing WordPress plugin development for 5 year, I still remember the feeling of the first time writing a plugin. Full of confusion, don’t know where to begin. Don’t know how to create a menu, don’t know where to handle the request data. Try to reinvent some functions that WordPress already comes with.
5 years later, I (humbly) claim myself an experience junior wordpress plugin developer. lol! Well, I’ve complied a list of great resources that may be useful for people who have read the official guide of Writing a plugin and want to get familiar with WordPress plugin development quickly.