Array Iteration

• forEach(fn) - Run a function on each element (doesn't return anything)
• map(fn) - Transform each element, returns new array
• filter(fn) - Keep elements that pass a test, returns new array

1. Create an array numbers with values [1, 2, 3, 4, 5]
2. Use forEach to log each number multiplied by 2
3. Use map to create a new array doubled where each number is doubled
4. Use filter to create a new array evens with only even numbers
5. Log both doubled and evens

numbers.forEach((num) => console.log(num))
const squares = numbers.map((num) => num * num)
const big = numbers.filter((num) => num > 10)