Duke questions

Duke answers

• What is the equivalent of jQuery "off" in JavaScript? [duplicate]
• Cannot add to repository
• bundle exec rake assets:precompile - database configuration does not specify adapter
• Timezone with rails 3
• Puma Cluster configuration on Heroku
• Backbone.js: Elegant way to check if data ready and if the dataset is empty
• ActiveRecord Callbacks List
• UIWebview: WebThread EXC_BAD_ACCESS
• performant ordering of keys in a MySQL compound index (WRT Rails Polymorphic associations and STI)
• Rails 3 - Whenever gem error: /usr/bin/env: ruby: No such file or directory