Power Query: recursive function to append elements in a table - powerbi

Question

I am trying to use a recursive function to append values from a list to a table, however the code below only show me the first and second results:
let
Source = {"second", "third", "forth", "fith", "seventh", "eighth"},
Count = List.Count(Source),
Table = Table.FromRecords({[sequence = "first"]}, type table[sequence = text]),
appendTbl = (x as list, n as number, tbl as table) =>
let
appTable = Table.InsertRows(Table, n, {[sequence = Source{n}]}),
Check = if n = (Count-1) then #appendTbl(x, n+1, appTable) else appTable
in
Check,
Result = appendTbl(Source, 0, Table)
in
Result
Can anyone please give me a help? Thanks !

Answer 1

Its kind of hard to tell if you are using the number to designate the spot in the table you want to insert, or the number of times you want to duplicate the array before inserting it into the table
That said, you can combine tables with Table.Combine() after converting the list to a table with Table.FromList(). If you need to append it multiple times then just use List.Repeat on the list. If you need to use the Count variable in your function, you have to send it there appendTbl = (x as list, n as number, tbl as table, count as number) =>
some sample codes that probably don't do exactly what you want
let Source = {"second", "third", "forth", "fith", "seventh", "eighth"},
AppendCount=2, //# times to append the list onto the table
#"Converted to Table" = Table.FromList(List.Repeat(Source,AppendCount), Splitter.SplitByNothing(), null),
#"Renamed Columns" = Table.RenameColumns(#"Converted to Table",{{"Column1", "sequence"}}),
Table = Table.FromRecords({[sequence = "first"]}, type table[sequence = text]),
combined= Table.Combine({Table, #"Renamed Columns"})
in combined
or
let Source = {"second", "third", "forth", "fith", "seventh", "eighth"},
Table = Table.FromRecords({[sequence = "first"]}, type table[sequence = text]),
appendTbl = (x as list, n as number, tbl as table) => // append list x to table tbl, n times on column sequence
let #"Converted to Table" = Table.FromList(List.Repeat(x,n), Splitter.SplitByNothing(), null),
#"Renamed Columns" = Table.RenameColumns(#"Converted to Table",{{"Column1", "sequence"}}),
combined= Table.Combine({tbl, #"Renamed Columns"})
in combined,
Result = appendTbl(Source, 2, Table) // append Source to Table, 2 times
in Result