Static variables in JavaScript

Question

How can I create static variables in Javascript?

Answer 1

If you want to use prototype then there is a way

var p = function Person() {
    this.x = 10;
    this.y = 20;
}
p.prototype.counter = 0;
var person1 = new p();
person1.prototype = p.prototype;
console.log(person1.counter);
person1.prototype.counter++;
var person2 = new p();
person2.prototype = p.prototype;
console.log(person2.counter);
console.log(person1.counter);

Doing this you will be able to access the counter variable from any instance and any change in the property will be immediately reflected!!