Approach to use useContext

We have created a Globaldata context using the createContext() function and exported it to be used in other components. We have created a state to store the data and stored that state and its function in a react context by using <Globaldata.Provider value={{….}}>.

We are accessing this react context in a child component by using useContext hook as a function and we are passing our Globaldata context that we have created in a parent component.

Syntax:

import { createContext } from "react";
export const contextName = createContext();

To provide a react Context Data to Application (create this at root level component):

Syntax:

<ContextName.Provider value={{....}}>
      ...other components...
</ContextName.Provider>

To access Context data:

Syntax:

import { useContext } from "react";
import { ContextName } from "./component";
const { ...... } = useContext(ContextName);

ReactJS provides Context API to manage the state at a global level in your application. It acts as a container where you can store multiple states, and functions and access them from anywhere in the application by using the useContext hook. In this article, we are going to learn how to use the useContext hook with examples and syntax.