ReactJS testInstance.type 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 know how to use testInstance.type property. This property is used to get a component type which is corresponding to the test instance.

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
```

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.type Property 
  function testRenderFun() { 
    const renderer = TestRenderer.create( 
      <div>w3wiki TestRenderer.type Property</div> 
    ); 
    const mytype = renderer.root; 
    console.log(mytype.type); 
  } 
  
  // Function Call 
  testRenderFun(); 
  
  // Returning our JSX code 
  return <> 
    <p> 
      w3wiki TestRenderer.type Property 
    </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 start

Output: Now open your browser and go to http://localhost:3000/, you will see the following output:

Reference: https://reactjs.org/docs/test-renderer.html#testinstancetype

App.js

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