Holger Just questions

Holger Just answers

• What are => and : in Ruby?
• How to capture Chef exceptions
• How can I change an index defined on a table?
• SyntaxError: (irb):26: both block arg and actual block given
• How to Fix '422 Unprocessable Entity' when sending a POST request to Redmine API?
• How to drop the "CreateDB" permission for a user?
• How to measure ActiveRecord's size on memory?
• How to undefine namespaced class in Ruby?
• (byebug) status 200 *** ArgumentError Exception: wrong number of arguments (given 1, expected 0)
• HAProxy error detected while parsing switching rule : no such ACL : '{hdr(host)'