So I am trying, with some success to use the Angular File Manager (last commit in 2020, https://github.com/joni2back/angular-filemanager). I have one production release. But I do not understand what the build function does in that project. I use the source Javascript. Then my boss sends me a link about the Angular Cache here, https://angular.io/cli/cache And that does not even look like javascript. I think that Angular JS is a javascript lib developed at google and now open source https://angularjs.org/ But what is angular.io? And why does angular-filemanager need to build?
So can someone please help me understand how these two projects relate to each other?