Simplest/Cleanest way to implement singleton in JavaScript?

Question

What is the simplest/cleanest way to implement singleton pattern in JavaScript?

Answer 1

There is more than one ways to skin a cat :) Depending on your taste or specific need you can apply any of the proposed solutions. I personally go for CMS' first solution whenever possible (when you don't need privacy). Since the question was about the simplest and cleanest, that's the winner. Or even:

var myInstance = {}; // done!

This (quote from my blog) ...

var SingletonClass = new function() { 
    this.myFunction() { 
        //do stuff 
    } 
    this.instance = 1; 
}

doesn't make much sense (my blog example doesn't either) because it doesn't need any private vars, so it's pretty much the same as:

var SingletonClass = { 
    myFunction: function () { 
        //do stuff 
    },
    instance: 1 
}