firstDayOfWeek is not a function

[3xception]

Following documentation leads to exception:
http://www.daterangepicker.com/#example4

Uncaught TypeError: t.localeData(...).firstDayOfWeek is not a function
at new a (daterangepicker.js:81:43)
at HTMLDivElement. (daterangepicker.js:1571:40)
at Function.each (jquery.min.js:2:2715)
at r.fn.init.each (jquery.min.js:2:1003)
at r.fn.init.e.fn.daterangepicker (daterangepicker.js:1567:14)

[dangrossman]

There's no such exception on that webpage.

Sounds like you haven't included the moment.js library in your page.

[3xception]

The problem was the version of moment I included was an older one. When I checked the js source I saw firstDayOfWeek was being called from moment so I updated to this and it now works fine:

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js" integrity="sha512-qTXRIMyZIFb8iQcfjXWCO8+M5Tbc38Qi5WzdPOYZHIlZpzBHG3L3by84BBBOiRGiEb7KKtAOAs5qYdUiZiQNNQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

Thanks for the quick reply.