@primer/react/dist/hooks/useIsMacOS.d.ts

An implementation of GitHub's Primer Design System using React

/**
 * SSR-safe hook for determining if the current platform is MacOS.
 *
 * Uses `useSyncExternalStore` to read the platform value:
 *
 * - On the **client**, `ssrUnsafeIsMacOS` reads `navigator.userAgent` and
 *   returns the real value immediately, with no extra render pass.
 *
 * - On the **server**, returns `false`. During hydration, if the snapshots
 *   differ, React handles the mismatch internally in a single synchronous
 *   pass, avoiding the layout shift that a deferred `useEffect` + `setState`
 *   would cause.
 *
 * Previous implementation used `useState` + `useEffect`, which caused an
 * unconditional second render on every mount (even on the client where the
 * initial value was already correct).
 */
export declare function useIsMacOS(): boolean;
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