-index.md

JavaScript Riddles

Try to guess what will be displayed in the console.

1.md

let arr = ['dog', 'cat', 'hen'];

arr[100] = 'fox';

console.log(arr.length);

Reveal Answer

---

Answer: 101

2.md

var a = 1;

function f1() {
    console.log(a);
}

function f2() {
    var a = 2;
  
    f1();
}

f2();

Reveal answer

---

Answer: 1