How to assign the contents of a variable to an array

[peterv12]

I have a variable that contains the following:

var1 = "01","02","03","04"

I want to put the contents of that variable into an array. I'm new to Ruby, so this is something I haven't tried before, and I don't know if it can be done. I tried:

a1 = Array.[](#{var1}) thinking that that would put the value into the parenthesis. This puts the entire variable value into the "0" element. I'm looking to put each of the numbers into their own element, which would leave me with an array with 4 elements, "01" through "04". Can anyone tell me what I'm doing incorrectly? Better yet, can anyone tell me how to do this correctly?
Thanks...

 

[mikrom]

Something like this

var1 = [COLOR=#6a5acd]'[/color][COLOR=#ff00ff]"01","02","03","04"[/color][COLOR=#6a5acd]'[/color]
puts [COLOR=#6a5acd]"[/color][COLOR=#ff00ff]var1 = [/color][COLOR=#6a5acd]#{[/color]var1[COLOR=#6a5acd]}[/color][COLOR=#6a5acd]"[/color]

[COLOR=#0000ff]# split variable into list[/color]
var1lst = var1.chomp.split([COLOR=#6a5acd]"[/color][COLOR=#ff00ff],[/color][COLOR=#6a5acd]"[/color])
puts [COLOR=#6a5acd]"[/color][COLOR=#ff00ff]var1lst = ([/color][COLOR=#6a5acd]#{[/color]var1lst[COLOR=#6a5acd]}[/color][COLOR=#ff00ff])[/color][COLOR=#6a5acd]"[/color]

[COLOR=#0000ff]# process list elements[/color]
var1lst.each{|[COLOR=#008080]el[/color]|
  puts [COLOR=#6a5acd]"[/color][COLOR=#6a5acd]#{[/color]var1lst.index(el)[COLOR=#6a5acd]}[/color][COLOR=#ff00ff]. element = [/color][COLOR=#6a5acd]#{[/color]el[COLOR=#6a5acd]}[/color][COLOR=#6a5acd]"[/color]
}

Output:

var1 = "01","02","03","04"
var1lst = ("01""02""03""04")
0. element = "01"
1. element = "02"
2. element = "03"
3. element = "04"

 

[feherke]

Hi

I want to put the contents of that variable into an array.

Huh ? That is already an array.

[blue]irb(main):001:0>[/blue] var1 = "01","02","03","04"
=> ["01", "02", "03", "04"]

[blue]irb(main):002:0>[/blue] var1.class
=> Array

a1 = Array.[](#{var1})

No idea what are you trying there, but I think you want one of these :

[blue]irb(main):001:0>[/blue] var1 = "01","02","03","04"
=> ["01", "02", "03", "04"]

[gray]# 1) set another pointer to the same array[/gray]
[blue]irb(main):002:0>[/blue] a1=var1
=> ["01", "02", "03", "04"]

[gray]# 2) copy the content in a new array[/gray]
[blue]irb(main):003:0>[/blue] *b1=var1 # copy   
=> ["01", "02", "03", "04"]

[gray]# the difference is visible when you alter the original[/gray]
[blue]irb(main):004:0>[/blue] var1[2]='FOO'
=> "FOO"

[gray]# 1) the pointer accesses the same content[/gray]
[blue]irb(main):005:0>[/blue] a1[2]
=> "FOO"

[gray]# 2) the copy is a separate object[/gray]
[blue]irb(main):006:0>[/blue] b1[2]
=> "03"

Feherke.

http://free.rootshell.be/~feherke/