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@@ -182,6 +182,19 @@ city(object, "New York") === object;
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city2(object, "New York") === object;
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city2(object, "New York") === object;
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// => true
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// => true
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+city(undefined);
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+// => undefined
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+city(null);
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+// => undefined
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+city({});
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+// => undefined
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+city({address: null});
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+// => undefined
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+city({address: {}});
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+// => undefined
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+city({address: {city: null}});
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+// => null
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+
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city(undefined, "London");
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city(undefined, "London");
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// => {address: {city: "London"}}
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// => {address: {city: "London"}}
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city(null, "London");
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city(null, "London");
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