Setting javascript prototype function within object class declaration

Question

Normally, I\'ve seen prototype functions declared outside the class definition, like this:

function Container(param) {
    this.member = param;
}
Container.p         


        

Answer 1

You need to put the function on each specific instance instead of the prototype, like this:

Container = function(param) {
    this.member = param;
    var privateVar = param;

    this.stamp = function(string) {
        return privateVar + this.member + string;
    }
}