Definition: The word "SessionHandler" is a key concept in web development, particularly within the context of the browser. This term refers to any JavaScript function that manages or interprets user sessions. Detailed Definition: - A Session Handler (shortened to 'sh') is a JavaScript function that performs actions during the execution of an application's main loop. It's responsible for managing user session states and providing services like authentication, storage, and event handling. - The main purpose of a sh is to manage the lifecycle of sessions by performing various operations such as: - Authenticating users - Updating session state - Persisting data across sessions - Handling events and errors related to user sessions For instance, in the Google Chrome browser, if you've logged into your Google account, a `window.sessionStorage` object might contain an `active` property that indicates whether the current user is active or not. A sh could then access this state using `getActive()`. Understanding Sh: - A sh can be thought of as a single function that manages multiple sessions at once, making it a powerful tool for managing browser states. So, in summary, `SessionHandler` is the key JavaScript function responsible for managing user sessions within web applications. Its primary role is to provide services like authentication, storage, and event handling, facilitating smooth interactions between the main application loop and its sessions.

SessionHandler