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author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-05-21 13:54:31 +0000 |
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committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-05-21 13:54:31 +0000 |
commit | e12df5ef40ff52d7428e89048c2424b57e26a907 (patch) | |
tree | f261acbf1384347a0f63f3026adba395a70b0167 /enumerator.c | |
parent | 3188b4695b917781563d72580943de8675072142 (diff) | |
download | ruby-e12df5ef40ff52d7428e89048c2424b57e26a907.tar.gz |
Update doc.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40883 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'enumerator.c')
-rw-r--r-- | enumerator.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/enumerator.c b/enumerator.c index a5f675e8ef..54fa49ff3c 100644 --- a/enumerator.c +++ b/enumerator.c @@ -819,6 +819,24 @@ enumerator_peek(VALUE obj) * * This value is cleared after being yielded. * + * # Array#map passes the array's elements to "yield" and collects the + * # results of "yield" as an array. + * # Following example shows that "next" returns the passed elements and + * # values passed to "feed" are collected as an array which can be + * # obtained by StopIteration#result. + * e = [1,2,3].map + * p e.next #=> 1 + * e.feed "a" + * p e.next #=> 2 + * e.feed "b" + * p e.next #=> 3 + * e.feed "c" + * begin + * e.next + * rescue StopIteration + * p $!.result #=> ["a", "b", "c"] + * end + * * o = Object.new * def o.each * x = yield # (2) blocks |