How to add first element of an array to first element of another array

Question

I have the bellow [sic] two arrays:

first_name = ["prabhu" ,"raghu" , "satish"]
second_name = ["chaitanya", "varma", "venkey"]

I want to print the following output:

full_name = ["prabhu chaitanya","raghu varma", "satish venkey"]

If you can modify second_name, you could do this (but using zip is the obviously what you should be using): first_name.map { |f| "#{f} #{second_name.shift}" }. — Cary Swoveland
– Cary Swoveland, Commented Apr 28, 2015 at 7:14

souslov · Accepted Answer · 2015-04-28 06:19:59Z

4

You can try the following:

first_name.zip(second_name).map{ |x| x.join(' ')}

edited Apr 28, 2015 at 6:19

answered Apr 28, 2015 at 5:51

souslov

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sawa · Accepted Answer · 2015-04-28 05:54:05Z

3

[first_name, second_name].transpose.map{|a| a.join(" ")}

answered Apr 28, 2015 at 5:54

sawa

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1 Comment

Gagan Gami Over a year ago

I like this method. I tried with zip method not know with transonse can be possible. Sawa you are great. Your answers are always unique and let me learn new trick everytime. I m big fan of u ;)

anusha · Accepted Answer · 2015-04-28 06:42:07Z

2

You can try this also:

full_name = [];
first_name.each_with_index {|x, i|  x + second_name[i]}

answered Apr 28, 2015 at 6:42

anusha

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Comments

Michael Kohl · Accepted Answer · 2015-04-28 06:03:43Z

0

first_name.zip(second_name).map { |f, l| "#{f} #{l}" }
=> ["prabhu chaitanya", "raghu varma", "satish venkey"]

Alternatively:

first_name.zip([" "].cycle, second_name).map(&:join)
=> ["prabhu chaitanya", "raghu varma", "satish venkey"]

answered Apr 28, 2015 at 6:03

Michael Kohl

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