prototype oriented - How to declare a static variable in Javascript

Question

(This question already has answers here): question from:https://stackoverflow.com/questions/7307243/how-to-declare-a-static-variable-in-javascript

Answer 1

function Person(){
    this.name = "Peter";
    Person.counter++;
    alert(Person.counter);
}

Person.counter = 0;

var p1 = new Person();
var p2 = new Person();

Make the "static" variable a property of the Person function, rather than the prototype, and use Person instead of this inside the constructor.

This is possible because JavaScript functions are first-class (i.e. they are objects), so can have properties of their own.

Here's a working example of the above code.