Function initJoin

initJoin(root: HTMLElement, options?: RuntimeOptions): ModuleCleanup
Initialize the Join module button handler within root.

Delegates click events to .join-btn elements. When clicked, the onJoin callback from the runtime options is invoked. If no onJoin callback is provided, the handler is a no-op.
Parameters
- root: HTMLElement
  The root DOM element containing rendered Wikidot markup.
- Optionaloptions: RuntimeOptions
  Runtime options containing the optional onJoin callback.
Returns ModuleCleanup
A cleanup handle whose destroy() method removes the click listener.
- Defined in modules/join.ts:32