I want to extract some country's holiday list from Google Calendar API using JavaScript.
Is it Possible? How Can I do this?
Yes, using Google API you can do that.
Create an API app in the google developer account
From the "Credentials" tab you can create an API key, you get
something like this AIzaSyBcOT_DpEQysiwFmmmZXupKpnrOdJYAhhM
Then, you can access holidays calendar using this URL
https://www.googleapis.com/calendar/v3/calendars/en.uk%23holiday%40group.v.calendar.google.com/events?key=<YOUR API KEY>