# Spread and Rest Operators

The spread and rest operators are both represented by three dots (`...`), but they have different functionalities.

## Spread Operator

The spread operator allows you to expand an iterable (like an array or object) into individual elements.

```javascript
const numbers = [1, 2, 3];
const newNumbers = [...numbers, 4, 5];
console.log(newNumbers); // [1, 2, 3, 4, 5]
```

## Rest Operator

The rest operator allows you to collect multiple elements into an array.

```javascript
function sum(...numbers) {
  return numbers.reduce((total, num) => total + num, 0);
}

console.log(sum(1, 2, 3)); // 6
```