Simply put, a web framework makes it easier to develop a web application. Consider the aspect of breaking down commonly used functionality into reusable modules. That is exactly what frameworks do. They come with a lot of reusable modules and enforce a standard structure for the code so that it will be easier for developers across the world to go through and understand the application.
Apart from all these advantages, web frameworks mostly get maintained by a lot of developers across the world. So, the effort of developers to incorporate the newer bug fixes and features of underlying languages is minimized to a point where we just need to upgrade the framework version which is being used by the application. So, the use of web frameworks for building web applications brings a lot of advantages to the development and maintenance phases of a web application...
