JS Lessons align with doing by learning methods and incremental development process
-All js files created in the "js" folder.
-After each version, new version built on previous version, so each new version contains previous js files.
-Each version file source code wrapped up a function. But these function just created to able to use evaluate and prism js file. In this case web page can shoe thevisitor for each version how the source code should be. Please for each version skip outer function and focus on what is written indside.