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| author | Xavier Noria <fxn@hashref.com> | 2009-09-22 09:50:31 +0200 |
|---|---|---|
| committer | Xavier Noria <fxn@hashref.com> | 2009-09-22 23:09:30 +0200 |
| commit | b1cdd97ce53821729e4fa21977eb25bffe263a4e (patch) | |
| tree | 4eb644c6d37f78cfd04b0db5baf3a38d6b5d58ab /railties/guides/source/active_support_overview.textile | |
| parent | 586fe4dc725ef9a92d39de1a4cac0ff6524b1b93 (diff) | |
| download | rails-b1cdd97ce53821729e4fa21977eb25bffe263a4e.tar.gz rails-b1cdd97ce53821729e4fa21977eb25bffe263a4e.tar.bz2 rails-b1cdd97ce53821729e4fa21977eb25bffe263a4e.zip | |
AS guide: documents Enumerable#none?
Diffstat (limited to 'railties/guides/source/active_support_overview.textile')
| -rw-r--r-- | railties/guides/source/active_support_overview.textile | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/railties/guides/source/active_support_overview.textile b/railties/guides/source/active_support_overview.textile index fde50b08ec..d8f6b31a65 100644 --- a/railties/guides/source/active_support_overview.textile +++ b/railties/guides/source/active_support_overview.textile @@ -900,6 +900,16 @@ If an optional block is given +many?+ only takes into account those elements tha @see_more = videos.many? {|video| video.category == params[:category]} </ruby> +h4. +none?+ + +The method +none?+ is the negation of +any?+. It yields elements to a block and returns true if none of them matches: + +<ruby> +success = responses.none? {|r| r.status / 100 == 5} +</ruby> + +Ruby 1.8.7 and later already have +none?+, Active Support defines it for previous versions. + h3. Extensions to +Array+ h4. Accessing |