spmallette opened a new pull request, #3645:
URL: https://github.com/apache/tinkerpop/pull/3645
Expand the Considerations for the difference() step in
gremlin-semantics.asciidoc with language-agnostic behavioral detail. The result
is a SET whose iteration order is unspecified and does not preserve the
incoming list order, and A-B is directional rather than order-preserving.
Membership compares members by both value and type, so numerically equal values
of different types are distinct, and a null is a legal list element while a
null or non-iterable whole traverser or argument raises an error. It also notes
that a traversal supplied as the argument produces the comparison list as a
single result.
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