Option to output formulae to JSON

I’m using .sheet_to_json for easier testing (instead of comparing the ws object with an expected one). The problem is that formula cells don’t show up in the JSON output. Is there a way to make that happen (other than sheet_to_formulae)? If not, an option like formulas: true for sheet_to_json would be very useful for test automation.

[Antonio-Gonzalez-Gomez]

For anyone still looking for this, I’m using a function based on @Mithgol algorithm from #270 with some tweaks:

workbook.SheetNames.forEach(function(name) {
   const sheet = workbook.Sheets[name];
   const range = XLSX.utils.decode_range(sheet['!ref']);
   const json = [];
   var row;
   var rowNum;
   var colNum;
   for(rowNum = range.s.r; rowNum <= range.e.r; rowNum++){
       row = [];
       for(colNum = range.s.c; colNum <= range.e.c; colNum++){
           var nextCell = sheet[XLSX.utils.encode_cell({r: rowNum, c: colNum})];
           if( typeof nextCell === 'undefined' ){
               row.push(void 0);
           } else {
               const value = nextCell.f ? "=" + nextCell.f : nextCell.v; //change this line if needed
               row.push(value);
           }
       }
       json.push(row);
   }
   //do stuff with the json
});

[leostar-eva]

I also met the same problem. Has this problem been solved?