diff options
| -rw-r--r-- | mrblib/enum.rb | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/mrblib/enum.rb b/mrblib/enum.rb index 2699a18af..666ada294 100644 --- a/mrblib/enum.rb +++ b/mrblib/enum.rb @@ -200,13 +200,18 @@ module Enumerable # ISO 15.3.2.2.11 def inject(*args, &block) raise ArgumentError, "too many arguments" if args.size > 2 - flag = true # 1st element? - result = nil + if args.empty? + flag = true # no initial argument + result = nil + else + flag = false + result = args[0] + end self.each{|val| if flag - # 1st element - result = (args.empty?)? val: block.call(args[0], val) + # push first element as initial flag = false + result = val else result = block.call(result, val) end |