assert_equal __, result
# Files act like a collection of lines
- file = File.open("example_file.txt")
- upcase_lines = file.map { |line| line.strip.upcase }
+ upcase_lines = File.open("example_file.txt") do |file|
+ file.map { |line| line.strip.upcase }
+ end
assert_equal __, upcase_lines
# NOTE: You can create your own collections that work with each,
# map, select, etc.
- ensure
- # Arg, this is ugly.
- # We will figure out how to fix this later.
- file.close if file
end
end
assert_equal __([11, 12, 13]), result
# Files act like a collection of lines
- file = File.open("example_file.txt")
- upcase_lines = file.map { |line| line.strip.upcase }
+ upcase_lines = File.open("example_file.txt") do |file|
+ file.map { |line| line.strip.upcase }
+ end
assert_equal __(["THIS", "IS", "A", "TEST"]), upcase_lines
# NOTE: You can create your own collections that work with each,
# map, select, etc.
- ensure
- # Arg, this is ugly.
- # We will figure out how to fix this later.
- file.close if file
end
end