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Update documentation for Array/Hash Argument section of methods.rdoc

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Adam Isom 2020-01-16 14:42:36 -07:00 committed by Nobuyoshi Nakada
parent 3344f81107
commit 09271acdaf
Notes: git 2020-01-17 19:51:12 +09:00 
Merged: https://github.com/ruby/ruby/pull/2844
1 changed files with 13 additions and 2 deletions
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15
doc/syntax/methods.rdoc
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@ -379,12 +379,23 @@ converted to an Array:
gather_arguments 1, 2, 3 # prints [1, 2, 3]
The array argument must be the last positional argument, it must appear before
any keyword arguments.
The array argument must appear before any keyword arguments.
It is possible to gather arguments at the beginning or in the middle:
def gather_arguments(first_arg, *middle_arguments, last_arg)
p middle_arguments
end
gather_arguments 1, 2, 3, 4 # prints [2, 3]
The array argument will capture a Hash as the last entry if a hash was sent by
the caller after all positional arguments.
def gather_arguments(*arguments)
p arguments
end
gather_arguments 1, a: 2 # prints [1, {:a=>2}]
However, this only occurs if the method does not declare any keyword arguments.