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<!DOCTYPE html> <html> <body> <h1>JavaScript Temporal PlainYearMonth</h1> <h2>The with() Method</h2> <p>The with() method returns a new PlainYearMonth with specified properties modified.</p> <p id="demo"></p> <script> // Create a PlainYearMonth object const date = Temporal.PlainYearMonth.from("2026-05"); // Modify const newDate = date.with({ month:12 }); document.getElementById("demo").innerHTML = newDate.toString(); </script> </body> </html>
