From array to 2D array devided by 2 values

Question

I'm having an array:

arr =["112000666", "10", "111282637", "15", "111342625", "12", "112000674",
      "11", "111488203", "18", "111237150", "20"]

Is there any way to make a 2D array and divided by 2 values? Something like this:

[["112000666", "10"], ["111282637", "15"], ["111342625", "12"],
 ["112000674", "11"], ["111488203", "18"], ["111237150", "20"]]

The number of elements will always be even.

demir · Accepted Answer · 2019-10-06 20:22:18Z

4

For rails you can use in_groups_of method:

arr.in_groups_of(2)
  #=> [["112000666", "10"], ["111282637", "15"], ["111342625", "12"],
  #    ["112000674", "11"], ["111488203", "18"], ["111237150", "20"]]

edited Oct 6, 2019 at 20:22

answered Oct 6, 2019 at 20:04

demir

4,7272 gold badges25 silver badges34 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Marshmello Over a year ago

Thank you! You are my savior!

Cary Swoveland · Accepted Answer · 2019-10-06 20:12:48Z

4

Pure Ruby:

arr.each_slice(2).to_a
  #=> [["112000666", "10"], ["111282637", "15"], ["111342625", "12"],
  #    ["112000674", "11"], ["111488203", "18"], ["111237150", "20"]]

See Enumerable#each_slice.

answered Oct 6, 2019 at 20:12

Cary Swoveland

111k6 gold badges69 silver badges105 bronze badges

Collectives™ on Stack Overflow

From array to 2D array devided by 2 values

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related