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404 Error Page Handles in Express JS
Express JS is a popular web application framework for Node.js that provides powerful features for building web applications. One important aspect of web development is handling error pages, such as the 404 error page.
Handling 404 Error Page in Express JS
When a user requests a page that does not exist on the server, the server returns a 404 error code. In Express JS, we can handle this error and customize the 404 error page to show a user-friendly message to the user.
Creating a Custom 404 Error Page
To create a custom 404 error page in Express JS, we can use the `app.use` method to create a middleware that handles the 404 error.
“`javascript
app.use(function(req, res, next) {
res.status(404).send(“Sorry, the page you are looking for does not exist.”);
});
“`
This code snippet creates a middleware that handles all requests that do not match any route in the application and sends a 404 error message to the user.
Testing the Custom 404 Error Page
To test the custom 404 error page, you can try accessing a non-existent page on your Express JS application. The server should return the custom 404 error message that you have defined.
Conclusion
In this article, we have learned how to handle 404 error pages in Express JS by creating a custom middleware that sends a user-friendly message to the user when a page is not found. Customizing error pages is important for providing a good user experience on your web application.
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Well explained, Sir , thnk you 👍
Very nice👍