How to get value from module, returns undefined value - node.js

Question

I am trying to return a random number from the random-number-csprng API and it sends the value to the console, but not outside of the module. How can I compare the value from the module inside another module?
I have tried to return the number parameter from the .then() function but it still does not get outside of the function.
const Promise = require("bluebird");
const randInt = require("random-number-csprng");
class project {
constructor(uname) {
this.uname = uname;
}
randomNumber(lowest, highest)
{
Promise.try(() => {
return randInt(lowest, highest);
}).then(number => {
console.log("Your random number:", number);
}).catch({code: "RandomGenerationError"}, err => {
console.log("Something went wrong!");
});
}
checkRandom()
{
console.log(`This is a test: ${this.randomNumber(1,100)}`);
if(this.randomNumber(1, 100) > 1)
{
console.log(`Works!`);
}
else
{
console.log(`Does not work!`);
}
}
}
Output
This is a test: undefined
Your random number: 65
Your random number: 71
I expected the output to be 65 on the undefined log, but seems like it does not get stored outside of the Promise.try()

Answer 1

I see you followed the example code on their documentation a bit too literally. You need to return the promise from the method, and consume it asynchronously by awaiting it:
const randInt = require('random-number-csprng');
class Project {
constructor(uname) {
this.uname = uname;
}
randomNumber(lowest, highest) {
return randInt(lowest, highest);
}
async checkRandom() {
const randomValue = await this.randomNumber(1,100);
console.log(`This is a test: ${randomValue}`);
if (randomValue > 1) {
console.log('Works!');
} else {
console.log('Does not work!');
}
}
}