Bug #18768
Updated by andrykonchin (Andrew Konchin) over 2 years ago
In IO, StringIO and String methods that return lines (e.g. `each`, `each_line`, `gets`, `readline`, `readlines`) behave in a different way when the following parameters are passed
- separator is `""` and
- `chomp` is `true`.
They truncate the new line characters between paragraphs and the trailing one differently:
```ruby
"a\n\nb\n\nc\n".each_line("", chomp: true).to_a
#=> ["a\n", "b\n", "c\n"]
StringIO.new("a\n\nb\n\nc\n").each_line("", chomp: true).to_a
#=> ["a\n", "b\n", "c"]
File.open('chomp.txt').each_line("", IO.readlines('chomp.txt', "", chomp: true).to_a true)
#=> ["a", "b", "c\n"]
```
The text file content is the same:
```ruby
File.read('chomp.txt')
#=> "a\n\nb\n\nc\n"
```
Expected behavior - they return the same result.