How to understand nil vs. empty vs. blank in Ruby

How to understand nil vs. empty vs. blank in Ruby

ruby-on-rails ruby

ruby

How do I get the current absolute URL in Ruby on Rails?

ruby-on-rails ruby url

ruby

Understanding the Rails Authenticity Token

ruby-on-rails ruby authenticity-token

ruby

How to "pretty" format JSON output in Ruby on Rails

ruby-on-rails ruby json pretty-print

ruby

Difference between rake db:migrate db:reset and db:schema:load

ruby-on-rails ruby database rake

ruby

How to drop columns using Rails migration

ruby-on-rails ruby database activerecord rails-migrations

ruby

How to remove a key from Hash and get the remaining hash in Ruby/Rails?

ruby-on-rails ruby ruby-on-rails-3 hashmap ruby-hash

ruby

Begin, Rescue and Ensure in Ruby?

ruby-on-rails ruby exception exception-handling error-handling

ruby

How to redirect to a 404 in Rails?

ruby-on-rails ruby http http-status-code-404

ruby

Error installing mysql2: Failed to build gem native extension

mysql ruby-on-rails ruby rubygems mysql2

ruby

Undo scaffolding in Rails

ruby-on-rails ruby scaffolding

ruby

What is the easiest way to duplicate an activerecord record?

ruby-on-rails ruby rails-activerecord

ruby

Rails 4: List of available datatypes

ruby-on-rails ruby ruby-on-rails-4 rails-activerecord

ruby

How do I get the name of a Ruby class?

ruby-on-rails ruby rails-activerecord

ruby

Rails update_attributes without save?

ruby-on-rails ruby ruby-on-rails-3 ruby-on-rails-4 rails-activerecord

ruby