Movie Filtering

For me, this was a really educational project.

For one, I learned how to work with local storage to save my bookmarks. This was tricky at first but I managed to find a solution by pushing each new bookmark to local storage. On each page load, read local storage and essentially compare that with the different values of the array.

Is there a way to condense my javascript into one file, rather than have 4 different files for the 4 different html pages. I know there is code that I could refactor because it is very similar across each page.