Calculated columns through a Site Script

[DavidDean_CHOICE]

Can anyone point me in the right direction to create calculated columns through a site script? or write the alternative through column formatting?

[#2]

@DavidDean_CHOICE   Check this  link http://www.sharepointdiary.com/2016/12/sharepoint-online-create-calculated-column-in-list-using-powe...