What is Ajax?
If you already know about Ajax, and want to use it in a plugin you are developing, skip to AJAX in Plugins.
How does Ajax work?
Ajax in WordPress
Because of its responsiveness, Ajax technology is being adopted by all sorts of websites — and WordPress is no exception. Currently, the core of WordPress uses Ajax only in the administration screens. For instance, Ajax is used for instant updates when you are doing comment moderation, and when you are adding and deleting items from lists such as categories, blogroll, and posts; Ajax is also the technology behind the auto-save functionality on post and page editing screens. Several themes and plugins also use Ajax; for instance, some post rating plugins use Ajax to store the visitor’s rating in the database and then display an updated average rating.
- Codex – Ajax in Plugins – WordPress-specific information on how to add Ajax to plugins
- WP_Ajax_Response Class Reference – Responding to Ajax requests
- Working Examples of Ajax
- Simplified Ajax – SAJAX
- „Eleven Emerging Ideas for SOA Architects in 2007” from Hinchcliffe.org; „This allows widgets, Ajax applications, and mashups to be wired together so quickly it can almost be done in real-time with the latest tools.”