var a = 1;

function scopeQuiz() {
  console.log(a);
  var a = 2;
}

scopeQuiz();

function delayedLog(item) {
  setTimeout(() => {
    console.log(item);
  }, 1000);
}
for (var i = 0; i < 3; i++) {
  delayedLog(i);
}

var a = 1;

const arrowQuiz = () => {
  console.log(this.a);
};

arrowQuiz();
var a = 2;

const x = [1, 2, 3];
const y = x;
y.push(4);
console.log(x.length);

const obj = { a: 1, b: 2, c: 3 };
const result = Object.values(obj).reduce((acc, curr) => acc * curr, 1);
console.log(result);

const person = { name: 'John', age: 30 };
const { name, ...rest } = person;
console.log(rest);