reset method
void
reset()
Clear everything.
Implementation
void reset() {
_manager.controllers.clear();
params.clear();
history.clear();
treeInfo.namePath.clear();
observer.onNavigate.clear();
observer.onPop.clear();
treeInfo.namePath[rootRouterName] = '/';
treeInfo.routeIndexer = -1;
settings.reset();
}