javascripting/problems/looping-through-arrays/problem.md

Learn JavaScript by adventuring around in the terminal.

For this challenge we will use a **for loop** to access and manipulate a list of values in an array.

Accessing array values can be done using an integer.

Each item in an array is identified by a number, starting at `0`.

So in this array `hi` is identified by the number `1`:

```js
var greetings = ['hello', 'hi', 'good morning'];
```

It can be accessed like this:

```js
greetings[1];
```

So inside a **for loop** we would use the `i` variable inside the square brackets instead of directly using an integer.

## The challenge:

Create a file named `looping-through-arrays.js`.

In that file, define a variable named `pets` that references this array:

```js
['cat', 'dog', 'rat'];
```

Create a for loop that changes each string in the array so that they are plural.

You will use a statement like this inside the for loop:

```js
pets[i] = pets[i] + 's';
```

After the for loop, use `console.log()` to print the `pets` array to the terminal.

Check to see if your program is correct by running this command:

```bash
javascripting verify looping-through-arrays.js
```