14 lines
198 B
JavaScript
14 lines
198 B
JavaScript
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var a;
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typeof(a) === "undefined";
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typeof(b) === "undefined";
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var obj = {}; // Empty object.
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typeof(obj.c) === "undefined";
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obj.c = 42;
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obj.c === 42;
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delete obj.c;
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typeof(obj.c) === "undefined";
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