naive script for retrieving garmin activities from their service, only currently runnable from the classic activities page

garminExport.js

activityServiceUrl = "https://connect.garmin.com/proxy/activity-service-1.1/tcx/activity"

activityIds = $('.activityNameLink').map(function() { 
	return this.href.substr(this.href.lastIndexOf('/') + 1) 
});
urls = activityIds.map(function() { 
	return activityServiceUrl + this + ".tcx"; 
});

urls.map(function() { downloadURI(this); } )

function downloadURI(uri, name) 
{
    var link = document.createElement("a");
    link.download = name;
    link.href = uri;
    link.click();
}