Replace non null values in a column with column title

[ValeriaBreve]

Hello,

I was wondering how to replace non null values in a column with the column title, what would be the best code to do this?

Thanks!

Kind regards

Valeria

[ValeriaBreve]

thank you!

[wdx223_Daniel · Accepted solution]

=Table.TransformColumns(PreviousStepName,{"ColumnName",each if _=null then _ else "ColumnName"})