Which option(s) will allow you to create a click counter with database in Meteor?

if (Meteor.isClient) { Template.home.events({ "click .increment": function () { var counterDoc = Counter.findOne(); if (counterDoc) Counter.update({_id: counterDoc._id}, {$inc: {clicks: 1}}); else Counter.insert({clicks: 1}); } }); Template.home.helpers({ clicks: function () { var counterDoc = Counter.findOne(); return counterDoc ? counterDoc.clicks : "0"; } }); }

Counter = new Mongo.Collection('counter'); Counter.attachSchema( new SimpleSchema({ clicks: { type: Number }, createdAt: { type: Date, denyUpdate: true, autoValue: function () { if (this.isInsert) return new Date; else if (this.isUpsert) return {$setOnInsert: new Date}; else this.unset(); } } }) );

All of the above