Google Docs Sheets - how to put an array of data into a variable in jquery-google-sheet-to-json?

Question

JSON

Hello friends, I have an interesting problem. You need to get cell values ​​from a Google Docs Sheets document, and use JS to process certain values ​​using mathematical operations on the site.
In general terms, everything is almost ready, using the
jquery-google-sheet-to-json
plugin, we managed to get an array of data (document cells) in JSON format. But now I can not figure out how to drive the data into a regular variable. I understand that for many my question will seem stupid, but apparently I can’t handle it myself.
In general, the above plugin has this function (file *jquery-google-sheet-to-json-master\jquery-google-sheet-to-json-master\examples\basic\ example.js ):

worksheets.forEach(function(worksheet){
 		$.googleSheetToJSON('1nmrLOKhY_XB9vYgr-8xYTQ7dAB7AykY9G-UolHvcit0', worksheet)
      .done(function(rows){

        var $container = $('<div>');
        $container.append('<h1>' + (worksheet || 'default') + '</h1>');
        rows.forEach(function(row){
          $dl = $('<dl>');
          Object.getOwnPropertyNames(row).forEach(function(name){
            var val = [].concat(row[name]).join(' / ');
            $dl.append('<dt>' + name + '</dt><dd>' + val + '</dd>');
          });
          $container.append($dl);
        });
        $(document.body).append($container);
      })
      .fail(function(err){
        console.log('error!', err);
      });
  });

How to drive an array of data from a Google Docs table into a regular variable in order to work with the data from the variable as with simple array elements?
Many thanks to all who answered.