This library is part of Help Scout's @hsds.
Includes:
FOCUSABLE_SELECTOR
findFocusableNodes
findFirstFocusableNode
findLastFocusableNode
findCurrentFocusedNodeIndex
findNextFocusableNode
findPreviousFocusableNode
focusNextFocusableNode
focusPreviousFocusableNode
getClosestFocusableParent
manageTrappedFocus
Run nx test utils-focus
to execute the unit tests via Jest.