Nick Vanderbilt questions

• ActiveSupport::StringInquirer in Rails
• How to replace master branch with experiment branch
• backtick vs system in ruby
• How do I declare gemspec dependency as >= 3.1 but less than < 4.0
• How to display month and year selection for credit card
• sed command not working in mac
• How to configure vim to treat .es6 files as javascript files
• asset pre compilation for subdirectory manifest file
• Why does instance_eval succeed with a Proc but not with a Lambda?
• How to add a conditional unique index on PostgreSQL

Nick Vanderbilt answers