Call a “local” function within module.exports from another function in module.exports?

Question

How do you call a function from within another function in a module.exports declaration?

app.js

var bla = require(\'./bla.js\');
console.log(bl         


        

Answer 1

Starting with Node.js version 13 you can take advantage of ES6 Modules.

export function foo() {
    return 'foo';
}

export function bar() {
    return foo();
}

---

Following the Class approach:

class MyClass {

    foo() {
        return 'foo';
    }

    bar() {
        return this.foo();
    }
}

module.exports = new MyClass();

This will instantiate the class only once, due to Node's module caching:
https://nodejs.org/api/modules.html#modules_caching