BUG with reassigning

[celicoo]

~ DELETED ~

[mscdex]

This isn't a bug. module.exports is only assigned once and it is cached by require(). You cannot magically change function references globally and directly like you are expecting.

However, one solution to this could be to return an object that holds a reference to the current sum() and reference that property in your main script instead. For example:

// sum.js
function sum(a) {
  console.log('test');
  exports.sum = function(b) {
    console.log(a + b);
  };
}

exports.sum = sum;

// main.js
var obj = require('./sum');

obj.sum(10);
obj.sum(15);
// outputs:
// test
// 25

[celicoo]

What if i want call sum one time from two other files? @mscdex

[mscdex]

If you need separate instances, then return new instances of sum() instead of the same function/instance.