From: Li Chen <chen_li3@...>
Date: 2006-10-24T11:15:04+09:00
Subject: Re: How to remove empty element in an array

Pete Yandell wrote:

> Your solution is broken. It'll delete any string from the array:
> 
> irb(main):001:0> a = [1, 2, 'a', 'b']
> => [1, 2, "a", "b"]
> irb(main):002:0> a.delete_if {|x| x =~ /$/}
> => [1, 2]

Hi,

I think this time it should work: regxp for the empty sapce is ^\d*$.

irb(main):003:0> a=[1,2,'','', 'a','b']
=> [1, 2, "", "", "a", "b"]
irb(main):004:0> a.delete_if {|x| x=~/^\d*$/}
=> [1, 2, "a", "b"]


Li

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