ReactJS unmountComponentAtNode() Method
React.js library is all about splitting the app into several components. Each Component has its own lifecycle. React provides us some in-built methods that we can override at particular stages in the life-cycle of the component.
In class-based components, the unmountComponentAtNode() method Remove a mounted React component from the DOM.
Creating React Application:
Step 1: Create a React application using the following command.
npx create-react-app foldername
Step 2: After creating your project folder i.e. foldername, move to it using the following command.
Project Structure: It will look like the following.
Example: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.
Step to Run Application: Run the application using the following command from the root directory of the project:
Output: Now open your browser and go to http://localhost:3000/, you will see the following output: