Replace a column value with dynamic value

Hi Anonymous, check this:

Output

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WcswrVYrViVYKyc+tBDN8M7MzEitTc8Acr8Q8XQMjMNM9Nb8oPRWiNiM/N7EYoiC1qAioLxYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Name = _t]),
    Date = List.Select(Source[Name], (x)=> (try Date.FromText("01-" & x) otherwise false) is date){0},
    Repalced = Table.TransformColumns(Source, {"Name", each Date, type text})
in
    Repalced