Whether to display week number in year on the left side of the calendar.
Examples
Material Design
<input id="datepicker" width="356" />
<script>
$('#datepicker').datepicker({ calendarWeeks: true, modal: true, footer: true });
</script>
Bootstrap
<input id="datepicker" width="250" />
<script>
$('#datepicker').datepicker({ calendarWeeks: true, uiLibrary: 'bootstrap' });
</script>
Bootstrap 4
<input id="datepicker" width="267" />
<script>
$('#datepicker').datepicker({ calendarWeeks: true, uiLibrary: 'bootstrap4' });
</script>
Bootstrap 5
<input id="datepicker" width="268" />
<script>
$('#datepicker').datepicker({ calendarWeeks: true, uiLibrary: 'bootstrap5' });
</script>