Persistence is a generic term programmers have used for years, to describe the action of capturing an active session, for the purpose of restarting it later from the same state. The essence of this feature is twofold. For CPU-intensive applications, such as complex computer simulations like weather or airflow prediction, persisting an application may be needed for restarting it from an intermediate step, saving the costly calculations up to this step. Microsoft implemented persistence using Behaviors, the new JavaScript feature of Internet Explorer 5.0.
Behaviors defined by the user are the most general ones.
Each of the above Behaviors provides a different type of persistence. How to write the Connect Three board game . How to identify the limitations of Internet Explorer 4.x that persistence removes from version 5.0. . How to use the saveFavorite persistence Behavior . How to use the saveHistory persistence Behavior .