How to define test for nested(?) const, JavaScript

Question

I'm using javascript for the first time in a work setting, and have to test a code running within our questionnare solution. The answers can only be true or false, and the check is written like this:

if(Page.Group.Question.Answer){*do something*};

In my test-code I have to define Page.Group.Question.Answer myself and I can't seem to find out how to do it, although I am sure it is quite easy. I have tried the following so far:

var Page.Group.Question.Answer = true;

and

let Page.Group.Question.Answer = true;

And then I tried to define a const, but I couldn't find out how it should be nested.

What is the correct syntax?

Answer 1

With some help from Jaromanda X and deceze the answer is that I need to define it as:

const Page = {Group: {Question: {Answer: true}}}