1. useState의 초기 렌더링: Dispatch가 어떻게 생성될까?function mountState( initialState: (() => S) | S,): [S, Dispatch>] { const hook = mountStateImpl(initialState); const queue = hook.queue; const dispatch: Dispatch> = (dispatchSetState.bind( null, currentlyRenderingFiber, queue, ): any); queue.dispatch = dispatch; return [hook.memoizedState, dispatch];} dispatch 함수는 초기 렌더 시점에 단 한 번 생성된다.dis..

React 19.3.0의 useState 구현을 보면 다음과 같다export function useState( initialState: (() => S) | S,): [S, Dispatch>] { const dispatcher = resolveDispatcher(); return dispatcher.useState(initialState);}resolveDispatcher()가 반환하는 dispatcher 객체의 useState 메서드를 호출할 뿐이다. resolveDispatcher가 반환하는 값function resolveDispatcher() { const dispatcher = ReactSharedInternals.H; return ((dispatcher: any): Dispatcher)..