Syntax
Table.AddColumn(table as table, newColumnName as text, columnGenerator as function, optional columnType as nullable type) as table
Description
Adds a column named newColumnName to the table table. The values for the column are computed using the specified selection function columnGenerator with each row taken as an input.
Reference Data
https://docs.microsoft.com/en-us/powerquery-m/power-query-m-function-reference