This seems to work
<script>
document.addEventListener("DOMContentLoaded", () => {
moment.updateLocale("en", {
week: { dow: 1 },
});
});
</script>
clone:
https://anvil.works/build#clone:JCLW2QKMFL2HWTTI=CVKHQ7DQWJK2YD43NZKK2DJI
You can also do something similar by calling a function:
js.call_js('updateMondays')
class Form1(Form1Template):
...
<script>
function updateMondays() {
moment.updateLocale("en", {
week: { dow: 1 },
});
};
</script>