React Js Change Favicon dynamically
React Js Change Favicon dynamically:To change the favicon dynamically in a React.js application using JavaScript, you can utilize the document object to access the HTML <head> element and manipulate the favicon <link> tag.
First, select the existing <link> tag with the rel attribute set to "icon" using querySelector. Then, create a new <link> element and set its rel attribute to "icon" and href attribute to the desired favicon image URL. Finally, remove the existing <link> tag from the <head> element and append the new <link> tag. This process replaces the favicon with the new image dynamicall
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How can the favicon be changed dynamically in a React.js application?
The code snippet demonstrates how to dynamically change the favicon in a React.js application. It uses the useEffect hook to perform the change when the component is mounted. The code selects the favicon element using a CSS selector, and then updates its href attribute to the desired URL (darkFavicon). This allows the favicon to be changed dynamically based on the specified URL
React Js Change Favicon dynamically
<html><head> <meta charset="UTF-8" /> <script src="https://unpkg.com/react@17.0.2/umd/react.development.js"></script> <script src="https://unpkg.com/react-dom@17.0.2/umd/react-dom.development.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script> <link rel="icon" type="image/x-icon" href="/images/favicon.ico"></head><body> <div id="app"></div> <script type="text/babel"> const { useEffect } = React; function App() { useEffect(() => { const favicon = document.querySelector('link[rel="icon"]'); const darkFavicon = 'https://www.google.com/favicon.ico'; favicon.href = darkFavicon; }, []); return ( <div className='container'> <h3>React Js Change favicon dynamically</h3> </div> ); } ReactDOM.render(<App />, document.getElementById("app")); </script> </body></html>