Merges new state with existing state (similar to React's setState) Pass undefined to clear all state
Partial state to merge, or undefined to clear
setState({ userId: '123' }); // Merges with existing statesetState({ theme: 'dark' }); // Adds to state, keeps userIdsetState(undefined); // Clears all state Copy
setState({ userId: '123' }); // Merges with existing statesetState({ theme: 'dark' }); // Adds to state, keeps userIdsetState(undefined); // Clears all state
Merges new state with existing state (similar to React's setState) Pass undefined to clear all state