add str.splitlines method

The new splitlines method on str is intended to replace usage of
fs.read('whatever').strip().split('\n').
The problem with the .strip().split() approach is that it doesn't have a
way to represent empty lists (an empty string becomes a list with one
empty string, not an empty list), and it doesn't handle Windows-style
line endings.

1 files changed, 3 insertions, 0 deletions

diff --git a/docs/markdown/snippets/add_str_splitlines_method.md b/docs/markdown/snippets/add_str_splitlines_method.md
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+## Added str.splitlines method
+
+[[str.splitlines]] can now be used to split a string into an array of lines.