exercism-workspace/newsletter/HINTS.md

Hints

1. Read email addresses from a file

• The simplifile.read function can be used to read the contents of a file.

2. Create a log file for writing

• The simplifile.create_file function can be used to create an empty file.

3. Log a sent email

• The simplifile.append function can be used to append text to a file.

5. Send the newsletter

• All the necessary operations on files were already implemented in the previous steps.
• The result.try function and list.try_each function can be used to work with the Result type.