How can I reverse an array in JavaScript?

How can I reverse an array in JavaScript?

You can reverse an array in JavaScript using the built-in reverse() method. For example: let arr = [1, 2, 3]; arr.reverse(); will change arr to [3, 2, 1].

Are there other ways to reverse an array?

Yes, you can also reverse an array using a loop or the reduce() method. For example, using a loop: for (let i = arr.length - 1; i >= 0; i--) { console.log(arr[i]); }.

What if I want to reverse a string instead?

You can convert the string to an array using split(), reverse it, and then join it back. For example: let str = 'hello'; let reversed = str.split('').reverse().join(''); will give you 'olleh'.

Can I reverse an array without using built-in methods?

Yes, you can implement your own function to reverse an array. Here's a simple example:

function reverseArray(arr) {
    let reversed = [];
    for (let i = arr.length - 1; i >= 0; i--) {
        reversed.push(arr[i]);
    }
    return reversed;
}