function multiply(a, b = 1) {
return a * b;
}

const array = [1, 2, 3, 4];
const squaredArray = array.map(element => element * element);
console.log(squaredArray);
// 출력: [1, 4, 9, 16]

const name = "Alice";
console.log(`Hello, ${name}!`);

const obj = { a: 1, b: 2, c: 3 };
const { a, b, c } = obj;

async function fetchData() {
const data = await fetch('https://api.example.com');
const json = await data.json();
console.log(json);
}

const arr1 = [1, 2, 3];
const arr2 = [4, 5, 6];
const combined = [...arr1, ...arr2];

const array = [1, 2, 3, 4];
array.forEach(element => console.log(element));
// 출력: 1, 2, 3, 4

const arr = [1, 2, 3, 4];
const squares = arr.map(n => n * n);