Question

Is it possible add an argument to a function reference in an object literal:

var custom = {onLoadBegin: onLoadBegin};

Would like it to be

onLoadBegin('argument')

Answer 1

Assuming you have a function named onLoadBegin that is external to custom, then you could do this:

var custom = {
    onLoadBegin: function() {
        onLoadBegin("argument");
    }
};

When you call custom.onLoadBegin it will invoke the original onLoadBegin with your argument.