useDisclosure

React chapter 51 · Mantine useDisclosure · source: mantinedev/mantine/packages/@mantine/hooks/src/use-disclosure

The problem

Every modal, drawer, and collapse reinvent open / setOpen(true) / setOpen(false) / setOpen(v => !v). Callbacks passed to children close over a stale setter or get recreated every render. The named verbs are the API people actually want.

The pattern that fixes it

useDisclosure(initial) returns [opened, { open, close, toggle }]. Stable callbacks. Mantine Modal, Drawer, and Collapse are all this hook plus a component. The hook is the reusable part.

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