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<html><body><h1>JavaScript Objects</h1><h2>The Object.keys() Method</h2><p>Object.keys() returns an enumerable array of the keys of an object:</p><p id="demo"></p><script>// Create an Objectconst person = { firstName: "John", lastName: "Doe", age: 50, eyeColor: "blue"};// Get the Keysconst keys = Object.keys(person);document.getElementById("demo").innerHTML = keys;</script></body></html>