Awesome

Diff

An efficient diffing engine in Swift.

WARNING: This implementation may be incomplete, see https://github.com/lxcid/ListDiff for a more full implementation

Interesting resources

1. Data comparision on Wikipedia
2. The og paper by Paul Heckel, and @ndarville's gist explaining it
3. Effeciency speed up strategies: https://neil.fraser.name/writing/diff/