arr-diff
Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.
natural-orderby
Lightweight and performant natural sorting of arrays and collections by differentiating between unicode characters, numbers, dates, etc.
assert-diff
Drop-in replacement for assert to give diff on deepEqual.
@thi.ng/diff
Customizable diff implementations for arrays (sequential) & objects (associative), with or without linear edit logs