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<html><body><h1>JavaScript Objects</h1><h2>The Object.keys() Method</h2><p>Object.keys() returns an Array Iterator object with the keys of an object:</p><p id="demo"></p><script>const fruits = ["Banana", "Orange", "Apple", "Mango"];const keys = Object.keys(fruits);document.getElementById("demo").innerHTML = keys;</script><p>Object.keys() is not supported in Internet Explorer 11 (or earlier).</p></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_object_keys by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:39:12 GMT --></html>