Do you know what will be the output of this code? function f() { return 1; } function f() { return 2; } console.log(f());

What happens when you declare the same function twice?

Do you know what will be the output of this code?

JavaScript

function f() {
  return 1;
}

function f() {
  return 2;
}

console.log(f());

Show answer and explanation

The answer is 2.

Both declarations are hoisted before any code runs, and the later one replaces the earlier one. With let or const this would be a SyntaxError.