Let's get some practice with the forEach method.

I've cleared out the examples we wrote in the last video.

Now let's use the forEach method to create a new array of the capitalized version of

these fruits.

First, I'll create a new array, capitalizedFruits.

Now, I'll iterate over the fruits array with forEach.

Inside the call back, fruit will be a string from the fruits array.

We can capitalize that string with toUpperCase.

I'll store the capitalized version of the string in a variable, capitalizedFruit.

Now I'll push the capitalized string into the capitalizedFruits array.

Let's log this capitalizedFruits array out so we can see if the program works or not.

When I run the program, you can see it works.

Cool, I wanna give you a challenge.

I'll erase this console window and

this code And paste in an array of prices.

If you want you can copy this snippet from the teacher's notes and

paste it into your workspace or editor, deleting everything else.

Using forEach, see if you can calculate a total cost by adding this list of

prices up and logging the result to the console.

I've added a comment here next to the array, so

you can see the result your program should display.

Pause the video and give it a try.

Now I'll show you how I solved this challenge.

I knew I'd have to keep track of a total price, so

I first created a variable called total and set it to 0.

Then I wanted to iterate over the prices array using forEach to get each price.

I wanted to add each price to the total and store that value back to total.

Once all the prices had been added together, I logged them to the console.

Running the iteration file.

You can see it works.

Lets try one more.

I'll clear the console and this file.

And then I'll paste in an array of names.

Again this is in the snippet section of the teacher's notes if you'd like to copy

and paste them.

See if you can create a new array with only the names starting with a letter s.

Here's a hint,

you'll need to find some way of checking the first character of each name.

Check the teacher's notes for a link to MDN's page on strings,

if you want to do a little research for this one.

Go ahead and pause the video and see if you can do it.

Here's how I solved this.

I first created a variable named sNames and set it equal to an empty array.

Then I used forEach to iterate over the names array.

I had to check the first letter of each name to know whether I wanted to add it to

my sNames array.

You could do this a couple ways, I used the charAt string method.

Passing in 0.

Because that's the first position of a string.

I checked if this was equal to a capital S.

If it was, I wanted to add the name to my sNames array.

Finally I logged the sNames array to the console, so

I could see if my program succeeded.

I ran the file.

And it works.