Javascript, modifying variables in other files

Question

I have two files set up as such:

file2.js

var someVariable;

function setVariable(newVar){
    someVariable = newVar;
}

file1.js

const file2Mod = require('./file2');

function initializeStuff(){
    .
    .
    .
    file2Mod.setVariable(4);
    .
    .
    .
}

For some reason, even after I call setVariable, the value of someVariable is still undefined. I have tried printing the value of someVariable inside setVariable to the console before and after assignment, and it is successfully being assigned inside setVariable. Somehow, this isn't translating when I try to access someVariable elsewhere in file1.js. I am new to javascript, so I am probably making a silly mistake. If more information is needed to solve the problem, I am happy to provide. Any advice would be hugely appreciated!

Thanks!

EDIT:

I forgot to mention, I am exporting at the end of file2.js as such:

exports.someVariable = someVariable
exports.setVariable = setVariable

Answer 1

window.someVariable = "abc"

Try this.