13 lines
232 B
Text
13 lines
232 B
Text
var x; # declared, but not defined
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x == nil && say "nil value";
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defined(x) || say "undefined";
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# Give "x" some value
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x = 42;
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defined(x) && say "defined";
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# Change "x" back to `nil`
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x = nil;
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defined(x) || say "undefined";
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