Iterate over array of hash

Question

I have a array of hash something like

[{a1: 'a', b1: 'b'},{a1: 'c', b1: 'b'},{a1: 's', b1: 'cq'}]

I want to sort the array in the ascending value of b1 and return an array. Sorry if its easy but got confuse with the logic.

This is a pure-Ruby question, so you should remove the Rails tags (even though it's been marked as a duplicate). When you give an example, please assign a variable to each input (e.g., `arr = [{a1:....]`) so that readers can refer to those variables in comments and answers without having to define them. Also, show your desired output for the example's input data. — Cary Swoveland, Feb 09 '17 at 18:00

Sapna Jindal · Answer 1 · 2017-02-09T17:22:43.810

0

Following will return you an array sorted based on b1

array_of_hashes.sort_by { |hsh| hsh[:b1] }

edited Feb 09 '17 at 17:22

answered Feb 09 '17 at 17:15

Sapna Jindal

no, it won't do that. – Sergio Tulentsev Feb 09 '17 at 17:17
Why? Whats the issue in this? – Sapna Jindal Feb 09 '17 at 17:18
yeah, the second version will work. but not the first one. – Sergio Tulentsev Feb 09 '17 at 17:19
1

Have you tried it? – Sergio Tulentsev Feb 09 '17 at 17:20
yea, my bad, removing the firrst one – Sapna Jindal Feb 09 '17 at 17:22
I have an hash say test = [{:a1=>"a", :b1=>"q"}, {:a1=>"c", :b1=>"z"}, {:a1=>"a", :b1=>"zcq"}] Need to find out count of key with "a"(:a1=>"a") in a hash. How to find the count of the selected `key`. – rekha Feb 09 '17 at 18:08

1 Answers1