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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>getDay() — weekend</title>
</head>
<body>
  <h1>Weekend check with getDay()</h1>
  <pre id="out"></pre>
  <script>
    (function () {
      function isWeekend(date) {
        var day = date.getDay();
        return day === 0 || day === 6;
      }

      var lines = [
        String(isWeekend(new Date(2026, 0, 3))),
        String(isWeekend(new Date(2026, 0, 5)))
      ];
      document.getElementById("out").textContent = lines.join("\n");
    })();
  </script>
</body>
</html>

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JavaScript Date getDay() — weekend check (Try It)