John questions

• How to get number with precision in a controller in rails
• How do you make a hidden text field in emberjs?
• Why is url helper in rails putting a "." instead of a "/" in path?
• How would I use a cron job to send an HTML GET request?
• Using Ruby Spreadsheet gem, is there a way to get cell to adjust to size of content
• Creating a Factory association that defaults to nil?
• Heroku not resetting database
• Modifying BaseController in rails ActiveAdmin gem
• Merging cells with Ruby Gem Spreadsheet
• In Rails how to check if javascript file exists before using javascript_include_tag

John answers