OptionParser#to_a

() -> ::Array[::String]

to_a

# File tmp/rubies/ruby-3.4.1/lib/optparse.rb, line 1436
def to_a; summarize("#{banner}".split(/^/)) end

Returns option summary list.

See also #terminate #top #summarize #to_s also in 4.1 · 4.0 · 3.3 · 3.2 · 3.1 · 3.0