Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →
instance method
OptionParser#help
() -> ::String
help
lib/optparse.rb
View on GitHub ↗
# File tmp/rubies/ruby-4.1.0-preview1/lib/optparse.rb, line 1419
def help; summarize("#{banner}".sub(/\n?\z/, "\n")) end
Returns option summary string.