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falsey
pannous edited this page Nov 5, 2020
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Falsey objects/constants are those that act as false in statements such as if, while
if x then y else z
0 zero
false not true
() empty node / set
null non-existent == nil,ø
unknown maybe existent
undefined maybe-existent, maybe error
missing existent but absent and required?
error internal error
Internally they are those with explicit operator Node::bool() == false