How to access variable in another file in node js - node.js

Question

I have 2 files: export.js and server.js
I'm trying to access a variable in export.js in server.js, but I get undefined.
Note that I'm using knexjs and I gave it the name 'db';
export.js
let count;
const livePending = (db) => {
db('cart')
.count('id').where('status','=','Pending')
.then(data => {
if (data[0]) {
count = data[0].count;
}
}).catch(err => res.status(400).send('DB Connection failed!'));
}
module.exports = {
livePending: livePending,
pCount: count
}
server.js
[...]
const anotherFile = require('./export');
anotherFile.livePending(db);
console.log(import.pCount);
When I try to console log inside the livePending function in export.js, I get the desired count which is 1.
The reason I'm doing this is to lessen the lines of code in my server.js.
If I do the exact same function in my server.js, I get the correct result.

Answer 1

I created a small node app to test a variation of your code. Two important findings:
1.
const import = require('./export');
import is reserved (as well as export). Node will throw a SyntaxError: Unexpected token if you attempt to use either one as a variable name.
2.
console.log(import.count);
In your code, you're attempting to log a variable that's already been returned. You'll notice the log statement will return undefined. Instead, create a function that you can call to get the value from the actual variable in the other file.
To make things clearer, here's a little demo to show these concepts in action.
export.js
let count;
const setCount = num => count = num;
const getCount = () => count;
// Shortcut: If the key: value is the same, we can just omit the value
module.exports = {
setCount,
getCount
}
server.js
const ex = require('./export');
ex.setCount(5);
console.log(ex.getCount()); // 5