Script

[ScriptHost]{#ScriptHost data-4search="ui/script.js:ScriptHost;section"}

A ScriptHost object represents a Worker script in the Main thread.

A ScriptHost object (defined in script.js) runs in the Main Javascript thread. It starts a Worker via host.js which creates a WorkerHost object in the Worker thread. The ScriptHost<->WorkerHost objects bridge needed API from the Main thread to the Worker thread. The WorkerHost then loads and calls into a user provided ES Module, the actual user script which communicates via the WorkerHost global variable host. See also #WorkerHost.