Convert Array of Array into string Array in efficient way

Question

I have an array

arr=[["Sumit", "where"], ["where", "are"], ["are", "you"]]

and i want to convert

arr=["Sumit where", "where are", "are you"]

how can i do this in efficient way

Mark · Accepted Answer · 2013-03-16 09:44:19Z

2

arr=[["Sumit", "where"], ["where", "are"], ["are", "you"]]  
v = arr.map { |x| x.join(" ") }  
p v

answered Mar 16, 2013 at 9:44

Mark

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Comments

shweta · Accepted Answer · 2013-03-16 09:38:45Z

0

try:

arr=[["Sumit", "where"], ["where", "are"], ["are", "you"]]
arr = arr.map {|i| i.join(' ') }

answered Mar 16, 2013 at 9:38

shweta

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it gives ["Sumit", "where", "where", "are", "are", "you"] but i want to arr=["Sumit where", "where are", "are you]

is it possible without loop?