How did .each have weird scoping pre-1.9? I've run across problems with for-loop... | Hacker News

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weavejester on Aug 20, 2012 | parent | context | favorite | on: Programming Languages Have Social Mores Not Idioms

How did .each have weird scoping pre-1.9? I've run across problems with for-loops, but .each has always behaved predictably, even in 1.8.

Could you perhaps provide an example of code using .each that does the wrong thing in 1.8, but the right thing in 1.9?

judofyr on Aug 20, 2012 [–]

    a = 0
    [1, 2, 3].each { |a| }
    a # => 3

weavejester on Aug 21, 2012 | [–]

Ah, thanks for the clarification. I guess that means there are at least two odd things about scoping in 1.8 loops.

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