Parameters

Name	Type	Default	Description
placement	'above' | 'below' | 'start' | 'end' | MaybeRefOrGetter	'above'	Position relative to the trigger. Logical: start / end mirror under RTL. Flips when there is no room.
alignment	'start' | 'center' | 'end' | MaybeRefOrGetter	'center'	Alignment along the placement axis.
delay	number | MaybeRefOrGetter	200	Delay before showing on hover, in milliseconds.
hideDelay	number | MaybeRefOrGetter	0	Delay before hiding after the pointer or focus leaves, in milliseconds. 0 uses the internal 100 ms bridge instead.
focusTrigger	'auto' | 'always' | 'never' | MaybeRefOrGetter	'auto'	When focus opens the tooltip. auto only attaches focus listeners to naturally focusable elements.
touchTrigger	'auto' | 'tap' | 'none' | MaybeRefOrGetter	'auto'	What a tap does where there is no hover. auto opens on tap unless the trigger performs an action of its own; tap always opens; none never opens on touch.
isEnabled	boolean | MaybeRefOrGetter	true	Whether hover and focus triggers are enabled.
isOpen	boolean | undefined | MaybeRefOrGetter	—	Controlled open state. true force-shows, false force-hides, undefined lets hover and focus manage visibility.
isDefaultOpen	boolean	false	Whether the tooltip is shown on mount.
onShow	() => void	—	Called when the tooltip becomes visible.
onHide	() => void	—	Called when the tooltip is hidden.

Returns

Field	Type	Description
isOpen	ComputedRef<boolean>	Whether the tooltip is showing. A controlled isOpen wins over the hover state.
triggerRef	Ref<HTMLElement | null>	Trigger element. Bind it with :ref; the hook attaches the handlers and the ARIA link.
contentRef	Ref<HTMLElement | null>	Bubble container.
id	string	Unique ID of the bubble.
anchorId	string	CSS identifier for the anchor element, for advanced positioning cases.
describedBy	string	ID to compose into aria-describedby. The hook already writes it onto triggerRef; it is here for hand-written ARIA.
contentStyle	ComputedRef<CSSProperties>	Inline coordinates for the bubble.
resolvedPlacement	ComputedRef<'above' | 'below' | 'start' | 'end'>	Placement actually in effect, after flipping for available space.
contentProps	ComputedRef<Record<string, unknown>>	Attributes for the bubble: id, role="tooltip", and the pointer handlers that keep it open.