angular2.js vs angular2.dev.js

Question

I was wondering about the differences between angular2.js and angular2.dev.js, of course there are more files like: router.dev.js and

Answer 1

There are actually three versions of angular2.js along with three files for each dependency. There is the regular prod version of each (angular2.js), a minified prod version (angular2.min.js) and a development version (angular2.dev.js). Check out this link to see how the files can be bundled: Bundles, their content and usage scenarios