CGI::QueryExtension#include?

(::String key) -> bool

include?(*args)

# File tmp/rubies/ruby-3.4.1/lib/cgi/core.rb, line 738
def has_key?(*args)
  @params.has_key?(*args)
end

Returns true if a given query string parameter exists.

See also #has_key? #initialize_query #[] #key? also in 3.3 · 3.2 · 3.1 · 3.0