How to declare a static variable in Javascript [duplicate]

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 … Read more