[ruby-core:60374] [ruby-trunk - Feature #8987] map/collect extension which handles arguments

Issue #8987 has been updated by Koichi Sasada.


Matthew Kerwin wrote:
>  Are any of these actually better than:
>  
>      p [1, 2, 3, 4].map{|x| 4+x }
>  
>  ?

LOL


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Feature #8987: map/collect extension which handles arguments
https://bugs.ruby-lang.org/issues/8987#change-44852

* Author: So Wieso
* Status: Open
* Priority: Normal
* Assignee: 
* Category: core
* Target version: current: 2.2.0
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Please consider extending map/collect by allowing additional arguments to be passed to proc, like:
A: [1,2,3,4].map :+, 4
and/or
B: [1,2,3,4].map 4, &:+

=> [5, 6, 7, 8]

Variant A is probably more readable. Variant B is more versatile (allows arbitrary arguments to be passed to block).


---Files--------------------------------
mappi.rb (410 Bytes)


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