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<!DOCTYPE html> <html> <body> <h1>JavaScript Global Methods</h1> <h2>The parseFloat() Method</h2> <p>parseFloat() parses a string and returns the first number:</p> <p id="demo"></p> <script> document.getElementById("demo").innerHTML = parseFloat("40.00") + "<br>" + parseFloat(" 40 ") + "<br>" + parseFloat("40 years") + "<br>" + parseFloat("40H") + "<br>" + parseFloat("H40"); </script> </body> </html>
