In a React application, what is the most efficient way to share global state between unrelated components?Passing props through the component treeUsing the Context APIStoring state in local storageUsing the useGlobalState hook

The most efficient way to share global state between unrelated components in a React application is by using the Context API. Here's a step-by-step guide on how to do it:

1. Create a Context: First, you need to create a context using React's createContext function. This function returns an object with a Provider and a Consumer component.

const MyContext = React.createContext(defaultValue);

2. Provide the Context: The Provider component is used higher in the tree and accepts a value prop. The value prop will be passed to consuming components that are descendants of this Provider.

<MyContext.Provider value={/* some value */}>

3. Consume the Context: Any component that needs the data stored in the context can access it using the Consumer component or the useContext hook.

<MyContext.Consumer>
  {value => /* render something based on the context value */}
</MyContext.Consumer>

or

const value = useContext(MyContext);

4. Update the Context: To update the context value, you would typically use a state management solution like useState or useReducer and pass the state and the state update function down through the context.

This way, you can share and manage global state in your application without having to pass props down through multiple levels of the component tree.