On a basic level, webpack is a build tool.  A build can be described as converting source code files into standalone artifacts that can be run on a computer. What webpack does, is bundle modules used within a frontend application into a single file. So what does this have to do with javascript? When working with javascript, there are certain tasks that you do on a regular basis (especially if you are building a large scale application). Things like file concatenating and minification of javascript and CSS files, running tests, linting etc. The reasons why we do these is so our javascript applications are performant. By having a build step we can solve issues like multiple web requests, code file size, file order dependencies, code syntax checking(linting) and many more. Having a build step mitigates these problems related to development. Read More