Home/ Questions/Q 8337487
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-09T04:19:11+00:00

We have an array items like this: items = [[[[2012-09-01, 10], [2011-09-10, 20]]], [[[2010-01-01,

  • 0

We have an array items like this:

items = [[[["2012-09-01", 10], ["2011-09-10", 20]]], [[["2010-01-01", 23]]]]

How to reduce the 4 dimensional items to 2 dimensional array like this：

items = [["2012-09-01", 10], ["2011-09-10", 20], ["2010-01-01", 23]]

Thanks so much.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Try Array#flatten. – http://www.ruby-doc.org/core-1.9.3/Array.html#method-i-flatten

    irb(main):001:0> items = [[[["2012-09-01", 10], ["2011-09-10", 20]]], [[["2010-01-01", 23]]]]
=> [[[["2012-09-01", 10], ["2011-09-10", 20]]], [[["2010-01-01", 23]]]]
irb(main):002:0> items.flatten(2)
=> [["2012-09-01", 10], ["2011-09-10", 20], ["2010-01-01", 23]]
    • 0