Column name as variable?

[richard-powerbi]

= (Source as table, optional Product as text) =>
let
   #"Replaced Value" = Table.ReplaceValue(Source, each Table.Column(Source, Product), each "xx", 
   Replacer.ReplaceText, {Product})
in
   #"Replaced Value"

Results in an error. How to do this?

[richard-powerbi · Accepted solution]

Nvm, found out that you have to use Record.Field(_, Product) instead of Table.Column(Source, Product)