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[backport] Mention "lambdas" and => in the manual (#12397) [ci skip]

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(so that "lambda" can be CTRL+F'd)

(cherry picked from commit 3b1760df72)
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awr1
2019-10-10 02:28:54 -05:00
committed by narimiran
parent a09379f5fd
commit 813b371758
1 changed files with 5 additions and 3 deletions
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8
doc/manual.rst
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@@ -3508,8 +3508,8 @@ for details on how to change this behavior.
Anonymous Procs
---------------
Procs can also be treated as expressions, in which case it's allowed to omit
the proc's name.
Unnamed procedures can be used as lambda expressions to pass into other
procedures:
.. code-block:: nim
var cities = @["Frankfurt", "Tokyo", "New York", "Kyiv"]
@@ -3519,7 +3519,9 @@ the proc's name.
Procs as expressions can appear both as nested procs and inside top level
executable code.
executable code. The `sugar <sugar.html>`_ module contains the `=>` macro
which enables a more succinct syntax for anonymous procedures resembling
lambdas as they are in languages like JavaScript, C#, etc.
Func