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<html><body><h1>JavaScript Objects</h1><h2>The Object.toString() Method</h2><p>Using Object.toString() returns the object constructor:</p><p id="demo"></p><script>const person = { firstName: "John", lastName: "Doe", age: 50, eyeColor: "blue"};const keys = Object.toString(person);document.getElementById("demo").innerHTML = keys;</script></body></html>