Wrong weekday when isIsoWeekday is set

[rootek123]

There's an issue with days labels when isIsoWeekday is set. For example 04.09.2019 is labeled as Thursday (should be labeled as Wednesday).

behavior can be checked in Storybook:
http://design-system-react-components.herokuapp.com/?path=/story/sldsdatepicker--iso-weekdays

When isIsoWeekday is not set everything is fine.

[welcome]

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[interactivellama]

I'm not sure when we will get around to this. The bug appears to only happen when the first day of a month is 1. At that time, there is no "reset" to push it back to "day 7", since there is no ISO version of Date.getDay().

This should work if you want to pull request the fix.

		const dayOfTheWeek =
			this.props.isIsoWeekday && firstDayOfMonth.getDay() === 0
				? 7
				: firstDayOfMonth.getDay();

		if (dayOfTheWeek > firstDayOfWeekOffset) {
			const prevWeek = DateUtil.addWeeks(firstDayOfMonth, -1);
			firstDayOfWeek = DateUtil.nearestWeekDay(prevWeek, firstDayOfWeekOffset);
		} else {
			firstDayOfWeek = firstDayOfMonth;
		}

[brahimkraiem]

Hello, are there any solution for this problem??
I can 't make monday the first day of my cale
I try to add isIsoWeekday with true value but didn't work !!!