ReactJS TestRenderer.toJSON() Method Last Updated : 03 Jun, 2021 Summarize Comments Improve Suggest changes Share Like Article Like Report 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 this article, we will know how to use TestRenderer.toJSON() method. This method is used to return an object representing the rendered tree in JSON form. Creating React Application And Installing Module: 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. cd foldername Step 3: Install the required module using the following command. npm install react-test-renderer 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. App.js import React from 'react'; import TestRenderer from 'react-test-renderer'; // Defining our App Component const App = () => { // Function to demonstrate TestRenderer.toJSON() method function testRenderFun() { const renderer = TestRenderer.create( <div>GeeksforGeeks TestRenderer.toJSON() method </div> ); console.log(renderer.toJSON()); } // Function Call testRenderFun(); // Returning our JSX code return <> <p> GeeksforGeeks TestRenderer.toJSON() method </p> </>; } // Exporting your Default App Component export default App Step to Run Application: Run the application using the following command from the root directory of the project: npm startOutput: Now open your browser and go to http://localhost:3000/, you will see the following output: Reference: https://reactjs.org/docs/test-renderer.html#testrenderertojson Comment More infoAdvertise with us Next Article ReactJS Test Renderer D dheerchanana2002 Follow Improve Article Tags : Web Technologies ReactJS ReactJS-Methods Similar Reads ReactJS TestRenderer.toTree() 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 this article, we will know how to use TestRenderer.toTree() method. 2 min read ReactJS TestRenderer.unmount() 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 this article, we will know how to use TestRenderer.unmount() method. 1 min read ReactJS TestRenderer.create() 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 this article, we will know how to use TestRenderer.create() method. 2 min read ReactJS render() Method In React, lifecycle methods manage a componentâs behaviour at different stages. The render() method is important for defining the UI, updating it whenever state, props, or context changes, and ensuring the UI stays in sync with the componentâs data.What is the Render() Method in ReactJS?The render() 6 min read ReactJS Test Renderer Without using the DOM or a native mobile environment, this package offers a React renderer that can be used to convert React components to pure JavaScript objects. In essence, this package streamlines the process of taking a screenshot of the platform view hierarchy (comparable to a DOM tree) produc 5 min read ReactJS TestRenderer.root Property 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 this article, we will see how to use TestRenderer.root property. The 1 min read Like