TIL, 2017-10-10 Studying tj/pomo

Studying tj/pomo:

• RbConfig::CONFIG to see compile time properties of the current Ruby implementation.
• In my Mac, RbConfig::CONFIG['host_os'] is darwin15.5.0.
• (/mac|darwin/ =~ RbConfig::CONFIG['host_os']) returns 0, since this is the index where the first match was found. If nothing was found, return nil.
• /usr/bin/sw_vers -productVersion to see what Mac OS version you have. sw_vers works too.
• terminal_notifier I think is better than growl.
• Creating a YAML file from a variable: File.open('yamlfile.yml', 'w') do |file| file.write({'haha' => [1, 2, 3] }.to_yaml) end (the ‘w’ file)
• Ruby Marshaling: Just a way to serialize and reconstruct a Ruby object.