How to have nested object inside namespace variable?

I am programming using namespaces, and so far I have only used variables and functions inside it. I tried to do a nested object in it, but it doesn't seem to work like I expect it. Here's the code

const myNameSpace = {

    someVar: '',
    otherVar: '',

    someFunc() {
        // code here
    },

    nestedObject: {
        param1: '',
        param2: '',
        param3: ''
    }
};

other variables work fine, but when I try to access param1, like this

myNameSpace.nestedObject.param1

it returns undefined, rather than an empty string like I have declared it. Also accessing only myNameSpace.nestedObject returns an empty string...

What is wrong with this, and is it even possible what I want?

It is working as expected, Run following code snippet.

const myNameSpace = {

    someVar: '',
    otherVar: '',

    someFunc() {
        // code here
    },

    nestedObject: {
        param1: 'param 1 value',
        param2: 'param 2 value',
        param3: 'param 3 value'
    }
};

console.log(myNameSpace.nestedObject.param1);