google-apps-script | Delete all events in a month - google-apps-script

Question

I am writing a script to delete every event from each of my calendars in a single month. My code:
function myFunction() {
var year = 2018;
var month = 11;
var fromDate = new Date(year,month,1,0,0,0);
var toDate = new Date(year,month,28,0,0,0);
var calendars = ['cal1', 'cal2', 'cal3','cal4','cal5','cal6'];
for (var x = 0; x < calendars.length; x++) {
var calendar = CalendarApp.getCalendarsByName(calendars[x])[0];
var events = calendar.getEvents(fromDate, toDate);
for(var i = 0; i < events.length; i++){
var ev = events[i];
ev.deleteEvent();
}
}
}
When I run my code I get the following error:
TypeError: Cannot call method "getEvents" of undefined. (line 13, file
"Code")
Am I not running getEvents() on a calendar object? Why is this code give me an error when it tries to use that function?

Answer 1

Try this:
I removed the deleteEvents because I don't want to delete my events. But this code produced Calendar Name, Event Title, Event StartTime and Event EndTime for all event in the given period.
function myFunction() {
var year = 2018;
var month = 11;
var fromDate = new Date(year,month,1,0,0,0);
var toDate = new Date(year,month,28,0,0,0);
var calendars = ['You'll have to put your calendar names back in here.']
var html='';
for (var x=0;x<calendars.length;x++) {
var calendar = CalendarApp.getCalendarsByName(calendars[x]);
var events = calendar[0].getEvents(fromDate, toDate);
for(var i = 0; i < events.length; i++){
var ev = events[i];
html+=Utilities.formatString('<br />Calendar Name: %s<br />EventTitle: %s<br />EventStartTime: %s<br />Event End Time: %s',calendar[0].getName(),events[i].getTitle(),events[i].getStartTime(),events[i].getEndTime() );
}
}
var userInterface=HtmlService.createHtmlOutput(html);
SpreadsheetApp.getUi().showModelessDialog(userInterface, 'Calendar Events')
}