Can anyone please give a strong definition or explanation for Javascript frameworks ?

Question

What are they? and why do we need them?. Cannot we finish the job without them? Any alternative if we can't use them for some reason?

Answer 1

The frameworks are no more than solid skeletons of the applications that one wants to perform. This case will talk about JavaScript frameworks for web development that have the appropriate standardization in the world of development. In the absence of frameworks, the framework of the work environment would vary considerably. It saves us time but it does not facilitate the programming the framewokrs there are for the part of the server or backend and for the part of the client or frontend. nestjs is a framework based on nodejs for backend, angular is a frameworks for the client side or frontend where it is used as components to HTML CSS AND JAVASCRIP