dcvogi

function collectBatteryUsage(stage){
  navigator.getBattery().then(function(batteryManagerData){
    ga('send', 'event', 'battery usage', stage, String(batteryManagerData.level));
  });
}

(function trackBatteryUsage(){
  if(!window.Promise){
    ga('send', 'event', 'browser support features', 'Promises', 'unable to handle Promises');
    return;

dcvogi

(function pageVisibility(){  
  
  function initializeTracking(){
    //...
  }

  function handleVisibilityChange(event){
    if(document.hidden){
      return;
    }

dcvogi

(function trackNetworkInformation(){
  // Check if network information is supported
  var connection = navigator.connection || navigator.mozConnection || navigator.webkitConnection;
  
  if (!connection){
    ga('send', 'event', 'browser support features', 'network information', 'network information api is not supported');
    return;   
  }
  
  var connectionType = connection.hasOwnProperty('type') ? 'type' : 'effectiveType';

dcvogi

(function trackGeolocation(){
  if (!window.navigator.geolocation) {
    ga('send', 'event', 'browser support features', 'geolocation information', 'geolocation api is not supported');
    return;   
  }
  function geoSuccess(position) {
    ga('send', 'event', 'geolocation', 'position', position.coords.latitude + ',' + position.coords.longitude);
  }
  function geoError(positionError) {
    ga('send', 'event', 'geolocation', 'error', positionError.message);

dcvogi

(function errorTracking() {
    window.onerror = function(msg, url, lineNo, columnNo, error) {
        var errorStack = error ? JSON.stringify(error.stack) : 'stack unavailale';
        var content = [
            msg, url, lineNo, columnNo, errorStack
        ].join(' - ');

        ga('send', 'event','error tracking', content);

        return false;

dcvogi

function gaGet(tableId, startDate, endDate, metrics, options) {
  // Apply standard options
  options = options || {};
  options['max-results'] = options['max-results'] || '10000';
  // If errors persist up to 5 times then terminate the program.
  for (var i = 0; i < 5; i++) {
      try {
        return Analytics.Data.Ga.get(tableId, startDate, endDate, metrics, options); // 503
      } catch (err) {
        // https://developers.google.com/analytics/devguides/reporting/core/v3/coreErrors

dcvogi

function main(){
    
    // Set up the parameters  and variables
    var sheetName = '<name>'; // The name of the sheet (not the Spreadsheet) we want to write the data e.g Sheet1
    var tableId = '<table id>'; // The id of the view to query the data from e.g ga:123456
    var startDate = 'yyyy-MM-dd'; // The start date of the query with the appropriate format e.g 2018-04-01 (1 April 2018)
    var endDate = 'yyyy-MM-dd'; // The end date of the query with the appropriate format e.g 2018-04-30 (30 April 2018)
   
    var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
    var sheet = spreadsheet.getSheetByName(sheetName);