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<html><body><h1>JavaScript Operators</h1><h2>The typeof Operator</h2><p>The typeof operator returns the type of a variable, object, function or expression:</p><p id="demo"></p><script>document.getElementById("demo").innerHTML = "The typeof 'John' is :" + typeof "John" + "<br>" +"The typeof 3.14 is :" + typeof 3.14;</script></body></html>