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This has been bugging me ever since I started learning Ruby five months ago:
Why do the Ruby docs seem to be missing things? For example, http://ruby-doc.org/core-1.9.3/Array.html has no mention of instance methods any? or all?.
That’s probably because
any?andall?are methods ofEnumerable.See the doc here.
There’s a section in the sidebar that lists modules included in Array. Enumerable is one (and the only) item in the list.