Garmin Connect add approximate Strokes Per Minute (SPM)

garmin-connect-spm.js

var col = 11; // this is the column before it will be inserted
$('#intervals-table table thead').find('th').eq(col).after('<td>SPM</td>');
$('#intervals-table table tbody').find('tr').each(function(){
  var  strokes = parseInt($(this).find('td').eq(12).text().trim());
//console.log(strokes);
  var timeString = $(this).find('td').eq(5).text().trim();
//console.log(timeString);
  var regex = /(\d{1,2}):(\d{2})/g; 
  var result = regex.exec(timeString);
  var minutes = parseInt(result[1]);
  var seconds = parseInt(result[2]);
  var totalSeconds = minutes * 60 + seconds;
  var spm = (strokes*2 / totalSeconds)*60;
  $(this).find('td').eq(col).after('<td>' + String(Math.round(spm * 100) / 100) + '</td>');
});