使用参数的javascript单例

Question

I have the following pattern however I'd like to know if I am thinking about this the right way. Do I need to assign the arguments to this ? Is there anything you would do differently?

var myFunction = (function() 
{
    function privateCheck(a,b) 
    { 
        console.log(a+b);
    }
    return 
    {
        init: function(x,y) 
        {
            privateCheck(x,y);
        }
    }
})();

myFunction.init(3,4);
myFunction.init(4,5);

Answer 1

Your anonymous, immediately-invoked function will always return undefined . Your return statement trips over a common issue:

return { // <--- curly brace MUST be here
    init: function(x,y) 
    {
        privateCheck(x,y);
    }
}

Other than that it should be OK, though there's not much context.

edit the issue has to do with the often-weird rules about "semicolon insertion". In this particular case, like a handful of others, the language sees a newline after that return and assumes you just forgot the semicolon.