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* doc/syntax/methods.rdoc: [DOC] [] and []= methods by @process

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[Fixes GH-662] https://github.com/ruby/ruby/pull/662


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47685 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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zzak 2014-09-22 10:50:52 +00:00
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ChangeLog
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@ -1,3 +1,8 @@
Mon Sep 22 19:49:12 2014 Zachary Scott <e@zzak.io>
* doc/syntax/methods.rdoc: [DOC] [] and []= methods by @process
[Fixes GH-662] https://github.com/ruby/ruby/pull/662
Mon Sep 22 18:21:35 2014 SHIBATA Hiroshi <shibata.hiroshi@gmail.com>
* .travis.yml: Only osx build is enabled. linux builds is random failure

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doc/syntax/methods.rdoc
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@ -109,6 +109,25 @@ operator with an <code>@</code> as in <code>+@</code> or <code>!@</code>:
Unary methods accept zero arguments.
Additionally, methods for element reference and assignment may be defined:
<code>[]</code> and <code>[]=</code> respectively. Both can take one or more
arguments, and element reference can take none.
class C
def [](a, b)
puts a + b
end
def []=(a, b, c)
puts a * b + c
end
end
obj = C.new
obj[2, 3] # prints "5"
obj[2, 3] = 4 # prints "10"
== Return Values
By default, a method returns the last expression that was evaluated in the body