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 the selected attribute. The selected attribute is used to set the default selected option which is displayed already on the select element.
Creating React Application And Installing Module:
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Step 1: Create a React application using the following command.
npx create-react-app foldername
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Step 2: After creating your project folder i.e. foldername, move to it using the following command.
cd foldername
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Project Structure: It will look like the following.
Example:
App.js
import React from 'react'; import ReactDOM from 'react-dom'; import './index.css'; import App from './App'; import reportWebVitals from './reportWebVitals'; import ReactDOMServer from 'react-dom/server'; Â Â Â Â Â const element = <div> Â Â Â Â <h1>neveropen</h1> Â Â Â Â <select> Â Â Â Â Â Â <option value="React">React</option> Â Â Â Â Â Â <option value="Angular">Angular</option> Â Â Â Â Â Â <option selected value="JavaScript">JavaScript</option> Â Â Â Â Â Â <option value="HTML">HTML</option> Â Â Â Â </select> </div>; Â Â ReactDOM.render( Â Â element, Â Â Â Â document.getElementById("root") ); |
Output:
Reference: https://reactjs.org/docs/dom-elements.html#selected
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