javascript

explain every line and output in this code

function MyClass() { this.x = 100; var y = "abc"; var getX = function() { console.log(this.x); //undefined console.log(y);//abc } getX(); this.getY = function() { console.log(this.x);//100 console.log(y);//abc } } var myClass = new MyClass(); myClass.getY();