Rukeeo1

function addNumber(a, b) {
  //check to see that 'a' and 'b' are numbers
  if (typeof a !== "number" || typeof b !== "number") {
    return "first and second parameter's must be numbers";
  }

  /* sum both numbers */
  let sum = a + b;

  /* if it's an Integer return 'sum', else for floating point numbers approximate to two decimal place*/

Rukeeo1

function addNumber(a, b) {
    return typeof a !== "number" || typeof b !== "number"
    ? "first and second parameter's must be numbers"
    : Number((a + b).toFixed(2));
}


/* Export the addNumber function to app.test.js */
module.exports = addNumber;

Rukeeo1

/* a userArray to serve as database for storing Users */
let userArray = [];

/* create an Id variable set it to zero and auto increment it each time the user constructor is called */
let id = 0;

/* A User constructor to create users */
function User(name) {
  this.name = name;
  accountBalance = this.accountBalance = 0;

Rukeeo1

/* import the User constructor*/
const User = require("./user_constructor").User;

//..create dummy users for test purposes
let userOne = new User("John Doe");
let userTwo = new User("Jane Doe");
let userThree = new User("Bill Clinton");

describe("testing that the constructor function returns an object", function() {
  it("should return 'object'", function() {