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<!DOCTYPE html> <html> <body> <p>The global JavaScript function parseFloat() converts strings to numbers:</p> <p id="demo"></p> <script> document.getElementById("demo").innerHTML = parseFloat("10") + "<br>" + parseFloat("10.33") + "<br>" + parseFloat("10 6") + "<br>" + parseFloat("10 years") + "<br>" + parseFloat("years 10"); </script> </body> </html>