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<!DOCTYPE html> <html> <body> <h1>JavaScript Numbers</h1> <h2>The Number.isNaN() Method</h2> <p>Is "Hello" NaN?</p> <p id="demo"></p> <p>Number.isNaN() is not supported in Internet Explorer 11 or earlier.</p> <script> let text = "Hello"; document.getElementById("demo").innerHTML = Number.isNaN(text); </script> </body> <!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_isnan_number3 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:39:09 GMT --> </html>
