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array.rb: show examples whether Array#shuffle! has side effect or not

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Partially revert 54fb8fb62a
This commit is contained in:
Yusuke Endoh 2020-11-12 16:56:15 +09:00
parent fa3670e6e4
commit a02ba60466
1 changed files with 4 additions and 2 deletions
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6
array.rb
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@ -4,7 +4,8 @@ class Array
#
# Shuffles the elements of +self+ in place.
# a = [1, 2, 3] #=> [1, 2, 3]
# a.shuffle! #=> [2, 3, 1]
# a.shuffle! #=> [2, 3, 1]
# a #=> [2, 3, 1]
#
# The optional +random+ argument will be used as the random number generator:
# a.shuffle!(random: Random.new(1)) #=> [1, 3, 2]
@ -17,7 +18,8 @@ class Array
#
# Returns a new array with elements of +self+ shuffled.
# a = [1, 2, 3] #=> [1, 2, 3]
# a.shuffle #=> [2, 3, 1]
# a.shuffle #=> [2, 3, 1]
# a #=> [1, 2, 3]
#
# The optional +random+ argument will be used as the random number generator:
# a.shuffle(random: Random.new(1)) #=> [1, 3, 2]