Split arrays in an array

Question

I want to split arrays in an array and get the string of the second elements mixed.

[["c","a","t"], ["d","o","g"]]
...
# => "ao"

How can I do it? I tried the join method and got the second and the fifth ones. But when the word length is different like this:

[["b","i","r","d"], ["c","a","t"]]

I don't know how to do it. Could you give me some advice?

Philip Hallstrom · Accepted Answer · 2015-08-28 16:47:49Z

5

> ary = [["c","a","t"], ["d","o","g"]]
=> [["c", "a", "t"], ["d", "o", "g"]]
> ary.map{|a| a[1]}.join
=> "ao"

answered Aug 28, 2015 at 16:47

Philip Hallstrom

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Comments

Jean Bob · Accepted Answer · 2015-08-28 16:56:13Z

4

You could try something like this :

> [["c","a","t"], ["d","o","g"]].collect{|e| e[1]}.join
=> "ao"

answered Aug 28, 2015 at 16:48

Jean Bob

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Wand Maker · Accepted Answer · 2015-08-28 18:10:08Z

0

Hopefully this will help

a = [["b","i","r","d"], ["c","a","t"]]
result = a.collect{ |_,s,*__| s }.join
p result 
# => "ia"

answered Aug 28, 2015 at 18:10

Wand Maker

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