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<!DOCTYPE html> <html> <body> <h1>JavaScript Global Methods</h1> <h2>The isFinite() Method</h2> <p>isFinite() returns false if a value is Infinity, -Infinity, or NaN, otherwise true:</p> <p id="demo"></p> <script> let result = isFinite("123"); document.getElementById("demo").innerHTML = result; </script> </body> </html>
