Ruby on Rails · question
Q.09 of 65
How does Rails handle different environments and what are they used for?
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Re-explain
Rails provides three default environments:
- Development: Reloading, verbose errors, debugging tools
- Test: Isolated testing, fixtures, transaction rollback
- Production: Optimized performance, caching, error monitoring
# Check current environment
Rails.env.development? # true/false
Rails.env # "development"
# Environment-specific code
if Rails.env.production?
# Production-only code
end
# Custom environments
RAILS_ENV=staging rails server
Each environment has its own configuration file in config/environments/ and database configuration.
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