2.1.7 [ECMA-262/5] Section 188.8.131.52, Object.prototype.valueOf ()
2. If O is the result of calling the Object constructor with a host object (184.108.40.206), then a. Return either O or another value such as the host object originally passed to the constructor. The specific result that is returned is implementation-defined.
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When O is the result of calling the Object constructor with a host object, the this value is returned.