Why let myGlobal =10; function fun1() { oppsGlobal =5; // Assign 5 to oopsGlobal Here } error

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

  **Your code so far**

// Declare the myGlobal variable below this line


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

}

// Only change code above this line

function fun2() {
var output = "";
if (typeof myGlobal != "undefined") {
  output += "myGlobal: " + myGlobal;
}
if (typeof oopsGlobal != "undefined") {
  output += " oopsGlobal: " + oopsGlobal;
}
console.log(output);
}
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36

Challenge: Global Scope and Functions

Link to the challenge:

just try oopsGlobal with and without ‘const’/‘let’ and see the difference in output.
that’s the lesson.

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