Anywhere 
 EJSON.equals(a, b, [options]) 
 import { EJSON } from 'meteor/ejson' Source 
 Return true if a and b are equal to each other. Return false otherwise. Uses the equals method on a if present, otherwise performs a deep comparison. 
Arguments
 a EJSON-able Object    b EJSON-able Object   
Options
 keyOrderSensitive Boolean   Compare in key sensitive order, if supported by the JavaScript implementation. For example, {a: 1, b: 2} is equal to {b: 2, a: 1} only when keyOrderSensitive is fa