Need help with this code please

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**

// Declare the myGlobal variable below this line
var myGlobal = 10;

function fun1() {
// Assign 5 to oopsGlobal Here
 oopsGlobal = 5;

// Only change code above this line
function fun2() {
var output = "";
if (typeof myGlobal != "undefined") {
  output += "myGlobal: " + myGlobal;
if (typeof oopsGlobal != "undefined") {
  output += " oopsGlobal: " + oopsGlobal;

  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.55 Safari/537.36 Edg/96.0.1054.43

Challenge: Global Scope and Functions

Link to the challenge:

Look at the tests.

myGlobal should be declared using the let or const keywords

It is quite convoluted. The key concept is to understand variables scoping. It is a large topic.

Good practice for defining variables is such that they only exist inside the block of code they were defined. For example,

const a='hello'
var b='world'

const and let are always scoped to a block { //code... }. var is only scoped to function blocks. And with no keyword, the variables are global.

With all this data you can probably interprete what they try to show.