How do I return a string that the built in Google Spreadsheet function can us

问题

I have a function that returns a string that are the cells that I need to scan with the UNIQUE() built-in function, but it does not process the returned value.

Tried putting them in quotes, didn't help.

function GetRange(sheet, ColumnLetter , Offset)
{
  var startColumn = letterToColumn(ColumnLetter);
  var string = "";

  for(var i=startColumn; i <= Offset; i++)
    {
      string += sheet + "!" + columnToLetter(i) +":"+columnToLetter(i)+";";      
    }

   string = string.substring(0, string.length-1);

   return string+"";
}

On the Sheet side I have this in a cell

=UNIQUE({GetRange("Raid","C", 30)})

I expected to get the returned string into the built-in UNIQUE() function, and execute the code like I would if I would have typed it in manually.

Instead, it just outputs the returned string into the cell like this

 Raid!C:C;Raid!D:D;Raid!E:E;Raid!F:F;Raid!G:G;Raid!H:H;Raid!I:I;Raid!J:J;Raid!K:K;Raid!L:L;Raid!M:M;Raid!N:N;Raid!O:O;Raid!P:P;Raid!Q:Q;Raid!R:R;Raid!S:S;Raid!T:T;Raid!U:U;Raid!V:V;Raid!W:W;Raid!X:X;Raid!Y:Y;Raid!Z:Z;Raid!AA:AA;Raid!AB:AB;Raid!AC:AC;Raid!AD:AD

回答1:

try like this instead:

=ARRAYFORMULA(SORT(UNIQUE(TRANSPOSE(SPLIT(TRIM(QUERY(TRANSPOSE(QUERY(TRANSPOSE(
 IF(LEN(Raid!A1:A), IF(Raid!C1:AL<>"", "♦"&Raid!C1:AL, ), )),,999^99)),,999^99)), "♦")))))

回答2:

Issue:

You're returning a string from the function. It can't be evaluated as a spreadsheet array literal by the spreadsheet.

Solution:

Return arrays instead.

Snippet:

/**
 * @param {Raid!C:AD} range - Range to stack as a array
 * @return The provided 2D array stacked up vertically
 * @customfunction
 */
function stackUp(range) {
  return Array.prototype.concat.apply(
    [],
    range[0].map(function(col, i) {
      //for each column
      return range
        .map(function(row) {
          return [row[i]];
        }) //get each row in this column
        .filter(String); //ignore empty rows
    })
  );
}

来源：https://stackoverflow.com/questions/56562774/how-do-i-return-a-string-that-the-built-in-google-spreadsheet-function-can-us