How can I get below string as result from the way i am getting it right now in elixir.
['x1', 'x2']
I tried with enum.join but did not get the desired data
to
'x1,x2'
If I understand correctly, you should use Enum.join/2 with the second parameter to define the "joiner". this should work:
arr = ['x1', 'x2']
Enum.join(arr, ",")
# => "x1,x2"
If you want the result to be char list, you can turn it to one using String.to_char_list/1:
String.to_char_list(Enum.join(arr, ","))
# => 'x1,x2'
Another option is to use Enum.reduce/2 and add the joiner explicitly:
Enum.reduce(arr, &(&2 ++ ',' ++ &1))
# => 'x1,x2'