Ruby Scope Iterator -

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this example:

def test(name)     names = %w(one 2 3 four)     names.each |name|         puts name     end     puts name end   test 'zero'  #out 1 2 3 4 four  #this correct? should 0

is correct output of program?

thanks , sorry english

this expected behavior in ruby 1.8, ruby 1.9.x, blocks variables have scope local block.

in ruby 1.8, block-variable ends changing global binding, if present. that's why, changes value of name variable. per, ruby 1.9.x, block-variable never changes it's container binding this. output:

> test('zero')
one
two
three
four
0

consider example:

x = 10 (1..10).each { |y| print x+y, " "} #=> 11 12 13 14 15 16 17 18 19 20

here, x not block variable inside block, picks binding present outside , uses value.


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