Function register

packages/react/src/hooks/useOnOutsideClick.tsx:33–35

(id: number, handler: TouchOrMouseEventCallback)

const registry: {[id: number]: TouchOrMouseEventCallback} = {}

function register(id: number, handler: TouchOrMouseEventCallback): void {
  registry[id] = handler
}

function deregister(id: number) {
  delete registry[id]