Description: Error handling in Express applications refers to the process of managing and responding appropriately to errors that may arise during the execution of a web application built with this Node.js framework. This handling is crucial to ensure that the application not only operates efficiently but also provides a smooth and understandable user experience. In Express, error handling is performed through specific middleware that captures errors at different stages of the request lifecycle. This includes syntax errors, database connection issues, or data validation errors, among others. By implementing effective error handling, developers can log errors, send appropriate responses to the client, and ultimately improve the stability and security of the application. Additionally, good error handling allows developers to identify and fix issues more quickly and efficiently, contributing to agile development and continuous software improvement. In summary, error handling in Express is an essential practice that helps maintain the integrity and usability of web applications, ensuring that errors are managed in a controlled manner and that users receive clear and useful information in case something goes wrong.
