'numberOfMonths' with current month position

[kkh975]

When using the 'numberOfMonths' option. (Also 'month' and 'onMonthChange' options)
Unconditional, the current month is set to the left as shown below.

What I'm suggesting is that If you set up the currentMonth position with numberOfMonths at the same time,
Allows you to set where to place current month.

For example, if numberOfMonths is 3, the currentMonthPosition can choose between 0,1,2.
If the current Month Position value is 1, it is expressed as below.

Furthermore, if numberOfMonths is 2, the currentMonthPosition can select one of 0,1.
If the current Month Position value is 1, it is expressed as below.

[rodgobbi]

Hi @kkh975
Thanks for the suggestion!

So, there are some cons and pros to adding such API.

This is more of a convenience API, because you can achieve the same result just using the month prop, and the suggested behavior for currentMonthPosition is always derived from month and can be computed as addMonth(month, - currentMonthPosition).

It's fine to have such an API for convenience, but it results in more complexity because it needs to be documented and maintained.
It's only worth adding such API if it's a common pattern, we can keep track of future requests for similar API to consider adding it to the DayPicker, for now, I'd recommend using addMonth(month, - currentMonthPosition) to compute the first displayed month in the calendar.

[kkh975]

Thanks for your kindness reply.