3. What are private member variables. in js
function ConstructorCar(initValue) { this.publicMember = initValue; let _privateMember = initValue; //private member this.getPrivateMember = function() { return _privateMember; } this.setPrivateMember = function(v) { _privateMember = v; }}ConstructorCar.prototype.drive = function() { //this._privateMember undefined console.log(“Drive! “+this._privateMember); }const car2 = new ConstructorCar(100);console.log(“getPrivateMember: “+car2.getPrivateMember());car2.drive();