What is middleware in Express.js? a. A front-end framework b. A type of database c. An asynchronous programming library d. A function that has access to the request and response objects

In an Express.js application, what is the purpose of middleware and how it can be used?Middleware is a special type of function that can be used to modify the request and response objects. It can be used through the "app.use()" function.Middleware is a Regular Expression and/or function that can be used to validate user input and then allow or reject a HTTP request. It can be used through the "app.engine()" function.Middleware is a special type of function that handles errors in an Express.js application. It can be added to the application using the "app.error()" function.Middleware is a function to log or modify information about incoming HTTP requests in an Express.js application. It can be added to the application using the "app.log()" or "app.use()" functions.

Q8.In web development with PHP frameworks, what is 'middleware'?A database management systemSoftware that acts as a bridge between an operating system or database and applicationsCode that is executed before and after your application handles a requestA front-end JavaScript framework

What is Express.js?A web application framework for Node.jsA programming languageA database management systemA front-end development tool

In Express.js, what is the purpose of the app.use() method when defining middleware for routing?(1 Point)To define static file servingTo define error-handling middlewareTo specify route handlers for all routesTo establish network connections

6.What are core features of Express framework ?(1 Point)Allows to set up middlewares to respond to HTTP RequestsDefines a routing table which can works as per HTTP Method and URLDynamically render HTML PagesAll of the above