0.79.0Not Equal to Self, a pill: x ~= x, which is true of NaN and nothing else. Luau has no isnan, and a value compared against itself reads as a mistake until you know the trick.
0.79.0Type as String writes the name typeof answers — "Vector3" — picked from a list rather than typed into a String node, where a misspelling is a check that never matches. The list is what typeof can answer: Luau's own names, Roblox's datatypes and Instance.
Changed
0.79.0Type Of is a pill, showing the typeof it writes.
0.79.0A value a node reads twice is worked out once.x ~= x on a call bound a local and compared it to itself; it used to make the call twice. A name, a number or a field read is still read where it is used.