Ruby Warnings | Alchemists

warn "A basic warning." # A basic warning. warn "Warning A.", "Warning B.", "...etc..." # Warning A. # Warning B. # ...etc... warn "Level 0", uplevel: 0 # (irb):8: warning: Level 0 warn "Level 1", uplevel: 1 # ~/<redacted>/irb/workspace.rb:113: warning: Level 1 warn "Level 2", uplevel: 2 # ~/<redacted>/irb/workspace.rb:113: warning: Level 2 warn "A deprecation example.", category: :deprecated # A deprecation example. warn "A performance example.", category: :performance # A performance example. warn "An experimental example.", category: :experimental # An experimental example. warn "A block example.", category: :strict_unused_block # A block example.