zwippie questions

zwippie answers

• How to validate .csv file in rails 4
• Is it possible to launch an interactive elixir shell and call a function immediately?
• "Invalid expression in guard, case is not allowed in guards" error
• ActiveModel::Errors translate attribute part of error message?
• How does this parallel assignment with the splat operator work in Ruby?
• What is the maximum number of child processes a supervisor can supervise?
• Rails 4.0 image_tag custom attributes
• Ruby + Option parser
• Meteor collection.insert callback issues
• var_dump and die like php, In ruby on rails (debug in ruby on rails)