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This is a fairly simple question, but I can't seem to find an example online. I've read up on objects and functions (i.e. here), but can't seem to find an example of a function within an object that accepts parameters.

In JavaScript, we can create an object, a nested object, and a method defined by a function:

var testObject = {
 nestedObject : {
 isNumber : function(number) { return !isNaN(number) };
 }
}

How can I call my function with a specific parameter? Is the following correct?

testObject["nestedObject"].isNumber(number)

Thanks!