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author | zzak <zzak@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-09-22 10:50:52 +0000 |
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committer | zzak <zzak@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-09-22 10:50:52 +0000 |
commit | f13f9f694615780ef0d3d7741e84892d572d5be9 (patch) | |
tree | 6a8b9fa14fb61b221d2ef75ac37a9813467a898f /doc/syntax | |
parent | cf33a35a731aca2c3a9d8d7e24e25f3e8e3052f8 (diff) | |
download | ruby-f13f9f694615780ef0d3d7741e84892d572d5be9.tar.gz |
* doc/syntax/methods.rdoc: [DOC] [] and []= methods by @process
[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
Diffstat (limited to 'doc/syntax')
-rw-r--r-- | doc/syntax/methods.rdoc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/syntax/methods.rdoc b/doc/syntax/methods.rdoc index 648843e753..58179549f3 100644 --- a/doc/syntax/methods.rdoc +++ b/doc/syntax/methods.rdoc @@ -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 |