RCR: Accumulating block

[Martin DeMello]

A bit of a wild idea, but how about syntactic support for accumulating
the results of multiple calls to yield?

a = []
(1..10).step(2) {|i|
...
a << retval
}

could become

a = (1..10).step(2) [|i| ...]

martin

 

[nobu.nokada]

Hi,

At Sun, 25 Apr 2004 03:04:04 +0900,
Martin DeMello wrote in [ruby-talk:98258]:

A bit of a wild idea, but how about syntactic support for accumulating
the results of multiple calls to yield?

a = []
(1..10).step(2) {|i|
...
a << retval
}

could become

a = (1..10).step(2) [|i| ...]

I don't feel it so essential.

$ ruby -renumerator -e 'p (1..10).enum_forstep, 2).to_a
[1, 3, 5, 7, 9]

 

[Martin DeMello]

Martin DeMello wrote in [ruby-talk:98258]:

a = (1..10).step(2) [|i| ...]

I don't feel it so essential.

$ ruby -renumerator -e 'p (1..10).enum_forstep, 2).to_a
[1, 3, 5, 7, 9]

Ah yes, I forgot about enum_for.

martin