Do they open a file and load it into memory? I'm asking because it seems to take a long time opening a file but after it opens looping into the variable is REALLY fast, could someone explain me or tell me where can I find an explanaition on how this sort of things work?
on 2013-10-21 17:36
on 2013-10-21 17:52
Usually the simplest way to learn how a gem works internally is to go and read the source code. This should be available in the gem files, on a github repository, or in the documentation.
on 2013-10-21 18:00
I haven't examined Roo, but you can see RubyXL reading the file into memory here: https://github.com/gilt/rubyXL/blob/master/lib/rub...
on 2013-10-21 18:01
I'm asking because I'm new to both ruby and rails and my knowledge is not enough to understand source code