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Document join's optional last parameter. #9159

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Nov 27, 2014
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Document join's optional last parameter. #9159

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8 changes: 6 additions & 2 deletions doc/stdlib/base.rst
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Expand Up @@ -1506,9 +1506,13 @@ Strings

Returns ``string`` with the first character converted to lowercase.

.. function:: join(strings, delim)
.. function:: join(strings, delim, [last])

Join an array of strings into a single string, inserting the given delimiter between adjacent strings.
Join an array of ``strings`` into a single string, inserting the given delimiter between adjacent strings.
If ``last`` is given, it will be used instead of ``delim`` between the last two strings.
For example, ``join(["apples", "bananas", "pineapples"], ", ", " and ") == "apples, bananas and pineapples"``.

``strings`` can be any iterable over elements ``x`` which are convertible to strings via ``print(io::IOBuffer, x)``.

.. function:: chop(string)

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