Hi Josh,

Keep getting a Access Denied error while trying to download session4.m4v. Had no problem downloading the other videos.

Going through the tutorial right now, I am confused as to what the {...} and the |number|mean in these two lines:

array.find { |number| number * 2 == 10 } # => 5
array.find { |number| number * 2 == 11 } # => nil

Could not find an explanation in earlier notes so I had to look them up. Figured it out in the end on my own, but it would be nice if a note covered this.

The solution takes value of current_char to the string indexes from [0..n] then puts the value of the current_char if current_char is "r". So how does it ends up with the correct answer. And also what does setting the value of add_next to 'false' accomplishes. Removing it gives an error, setting it to true comes up with an additional '0' th index character. I am clueless and now kind of bashing my head for 3 hours straight. Can you please elaborate a little, that would be great. I am just a new seedling in the world of coding.

That said I was wondering why you chose solutions and tests that only your briliance could come up with. Shouldn't we have some simple things first? I don't have a clue from the tests so I end up cheating and looking at your solves. Have you seen https://github.com/alexch/learn_ruby? I thank you for the excellence of your efforts. Sorry I was in such a bad mood.

Hi Josh,
thanks for making these lessons, I'm almost done with session two and enjoying it a lot :).

I was running the rspec on exercise 2 from session 2 (rake 2:2) and it keeps on failing.
I've also tried it with the solution provided by you (solved folder), same result.

This is the result that I am getting:

$ rake 2:2
(in /Users/sandagolcea/Projects/ruby/kickstart)
ruby -c '/Users/sandagolcea/Projects/ruby/kickstart/session2/challenge/2_input_output_control.rb'
Syntax OK
rspec -cr '/Users/sandagolcea/Projects/ruby/kickstart/session2/challenge/2_input_output_control.rb' -r enumerator '/Users/sandagolcea/Projects/ruby/kickstart/session2/spec/2.rb' --fail-fast
F

Failures:

1. hi_hi_goodbye should immediately quit if the first submission is bye
   Failure/Error: (!!output[BYE_REGEX]).should be_true
   expected true to respond to true?

   ./session2/spec/2.rb:35:in `hi_hi_goodbye_tester'

   ./session2/spec/2.rb:41:in`block (2 levels) in <top (required)>'

Deprecation Warnings:

Using should from rspec-expectations' old :should syntax without explicitly enabling the syntax is deprecated. Use the new :expect syntax or explicitly enable :should instead. Called from /Users/sandagolcea/Projects/ruby/kickstart/session2/spec/2.rb:34:in `hi_hi_goodbye_tester'.

If you need more of the backtrace for any of these deprecations to
identify where to make the necessary changes, you can configure
config.raise_errors_for_deprecations!, and it will turn the
deprecation warnings into errors, giving you the full backtrace.

1 deprecation warning total

Finished in 0.00485 seconds (files took 0.1046 seconds to load)
1 example, 1 failure

Failed examples:

rspec ./session2/spec/2.rb:40 # hi_hi_goodbye should immediately quit if the first submission is bye
rake aborted!
Command failed with status (1): [rspec -cr '/Users/sandagolcea/Projects/rub...]
/Users/sandagolcea/Projects/ruby/kickstart/Rakefile:67:in run_spec' /Users/sandagolcea/Projects/ruby/kickstart/Rakefile:93:inblock (4 levels) in <top (required)>'
/Users/sandagolcea/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in eval' /Users/sandagolcea/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in

Do you know what's wrong with it? :)

Hello,
I recently installed ruby (through rubyinstaller.org for windows 10) which is a version 2.1.7 as of today (december 2015) and by typing "gem list" in the terminal I see that there is already rake installed (v 10.1.0). Probably a basic and stupid question but when looking at the challenge folder in session 1, in the file 1_arithmetic.rb, it is indicated "fill out the method below then test tho see if you did them correctly with $ rake 1:1" >> I am not sure to understand how to test my code using rake.
Typing rake 1:1 in the terminal doesn't make sense I suppose but still I tried and got a "rake aborted!" message. Could you please let me know how should I do this?
Thanks in advance!
Btw, I just discovered these courses and thank you very much for putting these together and making it free!

I am in the process of creating rdocs for ruby-kickstart. Before I try to send a pull request I would just like you to take a look at it and see if I should. I could then just drop it into a branch if you like. My repo is ruby-kickstart-4-rdoc but I'm not done yet.
I'll push what I have so far maybe before days end.
Thanks. No hurry.

K! First of what you can do as what I am doing, go get practicing ruby articles here on github.
Practicing Ruby journal.
http://github.com/elm-city-craftworks/practicing-ruby-manuscripts
That has the code I'm using to do this with.

Next is your option. In Rakefile

filecontent = Kramdown::Document.new(filecontent, :coderay_line_numbers => nil, template: "#{__dir__}/templates/default.html.erb")

I chose to not include line numbers. Your choice though.
If you want line numbers then just remove the nil hash.
My Rackefile now is:

require "kramdown"
require "coderay"
require "fileutils"

MARKDOWN_FILES = Dir.glob("#{__dir__}/articles/**/*.md")

task default: :html_files

desc "Generate HTML files from markdown articles"
task :html_files do
  MARKDOWN_FILES.each do |markdown_file|
    html_path = markdown_file.sub("/articles/", "/articles-html/").sub(/\.md$/, ".html")
    puts "Generating #{html_path}"
    FileUtils.mkdir_p(File.dirname(html_path))
    File.open(html_path, "w") do |html_file|
      filecontent = File.read(markdown_file)
      filecontent = filecontent.gsub("\`\`\`", "~~~")
      filecontent = Kramdown::Document.new(filecontent, template: "#{__dir__}/templates/default.html.erb")
      html_file.write(filecontent.to_html)
    end
  end
end

desc "Delete all generated HTML files"
task :clean do
  FileUtils.rm_rf("#{__dir__}/articles-html")
end


ALL_FILES = Dir.glob("#{__dir__}/articles/**/*")
desc "make md files from ruby files"
task :make_and_add_ruby_tags_to_files do
  ALL_FILES.each do |file|
    if !File.directory?(file)
      File.open(file, "r") do |f|
        content = File.read(f)        
        content = "```ruby\n" + content + "```"
        path = f.path
        markdown_file_name = path << ".md"      
        File.open(markdown_file_name, "w") {|f| f.write(content) }          
      end
      File.delete(file)
      p file  
    end        
  end            
end

It's not 100% because of image files but you only have one right?
I deleted it before generating any html files.
http://myrackapps.herokuapp.com/htdocs/ruby-kickstart-master/session6/notes/09-static-files-and-bundler/public/dependencies.png
But added it back in after.

So you see we need some further tasks to do that so there won't be one manual manipulation like this and for future uses.

I would suggest you give a commented name to all these files so that they show up in the converted files. Maybe you know better than I how we could just take the Rakefile and do it. We have the file names after all. But I'm just glade I don't have to do this manually now. What a relief. ;-)

I've really learned a lot from guys like you, Gregory, github folks in general and all the other ones that I know from the web.

In the exercise, the comment on line 5 says that we can consolidate lines 6 and 7 into one line, which I have attempted to do in my code so that it reads as such:
`from_file, to_file = ARGV

puts "Copying from #{from_file} to #{to_file}"

in_file = open(from_file).read

puts "The input file is #{in_file.length} bytes long"

puts "Does the output file exist? #{File.exist?(to_file)}"
puts "Ready, hit RETURN to continue, CTRL-C to abort"
$stdin.gets

out_file = open(to_file, 'w')
out_file.write(in_file)

puts "Alright, all done"

out_file.close
in_file.close`

However when I run thi I get the error "ex17.rb:21:in <main>': undefined method close' for "This is a test file.\n":String (NoMethodError)
Did you mean? clone"

I can only assume the reason for this error is something to do with the way I typed in_file = open(from_file).read. Can anyone confirm this and if so how do I write this on a single line

expect(add_more_ruby("sadSadsadsad")).to be_eql "happyHappyhappyhappy"

instead

expect(add_more_ruby("sadSadsadsad").to be_eql "happyHappyhappyhappy"

Under Example at Line 32 the spec says

Blog.new Date.parse("2007-01-02"), lissa, "Going dancing!" # we'll call this blog2

Blog.new Date.parse("2006-01-02"), lissa, "For the last time, fuck facebook >.<" # we'll call this blog3

Blog.new Date.parse("2010-01-02"), lissa, "Got a new job, cuz I'm pretty much the best ^_^" # we'll call this blog4

lissa.blogs # => [ blog1 , blog4 , blog2 , blog3 ]

However, calling Blog.new directly and not via lissa.add_blog will not add blog2, blog3 and blog4 to lissa.blogs, will it?

Additionally (negligible, but here it goes), it seems like you want an attribute 'blogs' for User class and not a method, there is no mention of 'entry' method for Blog class except in examples and there is no mention of add_blog returning the added blog except when a rake test fails.

Looking at the test cases I managed to figure out what was expected and complete the challenge. However, I just wanted to raise it back to you in case anything I have raised is correct and in case you are planning on making updates to ruby-kickstart in the future.

Thank you for the brilliant tutorial. I have learnt a lot from it.