How to create a hash from keys array and values array?

Question

I have two arrays extracted from a HTML page:

@row_left = ['Title:', 'Author:', 'Price:', 'Description:', 'Seller:']    
@row_right = ['The Well-Grounded Rubyist', 'David A. Black', '$34.99', 'A great book for Rubyists', 'Ruby Scholar']

How can I combine both arrays into a hash?

{
  "Title:" => "The Well-Grounded Rubyist",
  "Author:" => "David A. Black",
  "Price:" => "$34.99",
  "Description:" => "A great book for Rubyists",
  "Seller:" => "Ruby Scholar"
}

What is @row_left, what is @row_right and what is your expected result? — Stefan
– Stefan, Commented May 25, 2016 at 9:43
@Stefan I'm trying to get the values of a html page of two classes row_left, row_right. I'm able to get those values from each loop. But I have a requirement where row_left value should be a key, row_right value should be a value in the form of a hash. Hope this is clear. Thankyou. — Atchyut Nagabhairava
– Atchyut Nagabhairava, Commented May 25, 2016 at 9:48
Could you provide some example data of both, your input and your desired output? — Stefan
– Stefan, Commented May 25, 2016 at 9:50
Sure, @Stefan if you consider the o/p from first loop as: Title: Author: , Price: , Description: , Seller: and let the output of second loop be: The Well-Grounded Rubyist, David A. Black, $34.99, A great book for Rubyists, Ruby Scholar — Atchyut Nagabhairava
– Atchyut Nagabhairava, Commented May 25, 2016 at 10:19
and the expected O/P is like: {"Title:"=>"The Well-Grounded Rubyist", "Author:"=>"David A. Black", "Price:"=>"$34.99", "Description:"=>"A great book for Rubyists", "Seller:"=>"Ruby Scholar"} — Atchyut Nagabhairava
– Atchyut Nagabhairava, Commented May 25, 2016 at 10:19

unflores · Accepted Answer · 2016-05-25 09:45:15Z

3

If you are looking for merging two equal length arrays into a hash, I would do this:

a = [1,3,5]; b=[2,4,6]
Hash[a.zip(b)]

answered May 25, 2016 at 9:45

unflores

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1 Comment

Atchyut Nagabhairava Over a year ago

I have upvoted you. But its not being shown due to lack of reputation point of 15. Anyways, Thanks once again for the answer you saved my day. :)

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