An Array of Arrays using Array.sort_by

ruby-talk
1

Hi,

I have:

myarray = Array.new
mylist = [1,2]
mylist2 = [3,1]
mylist3 = [2,1]
myarray.push(mylist)
myarray.push(mylist2)
myarray.push(mylist3)
myarray.sort
myarray.each do |x|
puts x[0]
end

And I would like to be able to sort myarray by the first or second
elements in the mylists...

I have been on this problem for a few hours, ay help would be
appreciated.

···

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Posted via http://www.ruby-forum.com/.

2

Tom Eaton wrote:

Hi,

I have:

myarray = Array.new
mylist = [1,2]
mylist2 = [3,1]
mylist3 = [2,1]
myarray.push(mylist)
myarray.push(mylist2)
myarray.push(mylist3)
myarray.sort
myarray.each do |x|
puts x[0]
end

And I would like to be able to sort myarray by the first or second
elements in the mylists...

I have been on this problem for a few hours, ay help would be
appreciated.

Please ignore this. I have the answer by searching the forums... Which i
should of done before i posted. I do apologies :frowning: Can an Admin remove
this post please?

···

--
Posted via http://www.ruby-forum.com/\.

3

Tom Eaton wrote:

I have:

myarray = Array.new
mylist = [1,2]
mylist2 = [3,1]
mylist3 = [2,1]
myarray.push(mylist)
myarray.push(mylist2)
myarray.push(mylist3)

You can make your life a bit easier by doing

myarray = [
  [1,2],
  [3,1],
  [2,1],
]

myarray.sort
myarray.each do |x|
puts x[0]
end

And I would like to be able to sort myarray by the first or second
elements in the mylists...

I have been on this problem for a few hours, ay help would be
appreciated.

Please ignore this. I have the answer by searching the forums... Which i
should of done before i posted. I do apologies :frowning: Can an Admin remove
this post please?

No. :wink: Rather, please post your solution so others can benefit once
they search through the archive.

Kind regards

robert

···

2010/2/9 Tom Eaton <te4t0n@gmail.com>:

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