2009/7/2 James Gray <james@[...].net> :

>  You need to reread what Bil was asking for.  ;)

Right.  Now I got it.  He means something like

irb(main):001:0>  a = (1..10).map { rand(10) }
=>  [8, 0, 4, 2, 1, 4, 5, 4, 2, 9]
irb(main):002:0>  i = -1
=>  -1
irb(main):003:0>  a.delete_if {|x| i += 1; x < i}
=>  [8, 4, 9]
irb(main):004:0> 

Correct?  Thanks for the heads up, James!

Site note: there seems to be a certain setting of the mind which
prevents that we consider a mutating operation in a "read only" block
used as filtering criterion.  Yet we can do it.  It took me a while,
too. :-)

Kind regards

robert

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