ruby-changes:31491
From: zzak <ko1@a...>
Date: Fri, 8 Nov 2013 02:15:54 +0900 (JST)
Subject: [ruby-changes:31491] zzak:r43570 (trunk): * array.c: [DOC] Add note about negative indices in Array overview
zzak 2013-11-08 02:15:49 +0900 (Fri, 08 Nov 2013) New Revision: 43570 http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=43570 Log: * array.c: [DOC] Add note about negative indices in Array overview By @ckaenzig [Fixes GH-427] https://github.com/ruby/ruby/pull/427 Modified files: trunk/ChangeLog trunk/array.c Index: array.c =================================================================== --- array.c (revision 43569) +++ array.c (revision 43570) @@ -5404,7 +5404,8 @@ rb_ary_drop_while(VALUE ary) https://github.com/ruby/ruby/blob/trunk/array.c#L5404 * * Elements in an array can be retrieved using the Array#[] method. It can * take a single integer argument (a numeric index), a pair of arguments - * (start and length) or a range. + * (start and length) or a range. Negative indices start counting from the end, + * with -1 being the last element. * * arr = [1, 2, 3, 4, 5, 6] * arr[2] #=> 3 @@ -5412,6 +5413,7 @@ rb_ary_drop_while(VALUE ary) https://github.com/ruby/ruby/blob/trunk/array.c#L5413 * arr[-3] #=> 4 * arr[2, 3] #=> [3, 4, 5] * arr[1..4] #=> [2, 3, 4, 5] + * arr[1..-3] #=> [2, 3, 4] * * Another way to access a particular array element is by using the #at method * Index: ChangeLog =================================================================== --- ChangeLog (revision 43569) +++ ChangeLog (revision 43570) @@ -1,3 +1,8 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1 +Fri Nov 8 02:14:37 2013 Zachary Scott <e@z...> + + * array.c: [DOC] Add note about negative indices in Array overview + By @ckaenzig [Fixes GH-427] https://github.com/ruby/ruby/pull/427 + Fri Nov 8 02:09:12 2013 Zachary Scott <e@z...> * lib/csv.rb: [DOC] Fix typo in CSV.parse_line by @funky-bibimbap -- ML: ruby-changes@q... Info: http://www.atdot.net/~ko1/quickml/