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Okay, so when we last left off,

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we have added onto our shopping list
after calling the add_list_item method.

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And that put list items
into an array of hashes.

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So now that we have all of this done,
let's go ahead and print out our list.

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And we'll create a new method to do that.

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So what I'm gonna do is click up in here
and create a method called print_list.

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And we'll pass in as an argument
the list that we want to print.

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So we know that our list has a name.

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So let's go ahead and
print that out as the first item here.

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Now we do that by using
string interpolation.

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Now we know that the list
name is a string.

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And we access the value of
that by calling list['name'].

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Since it's a string, string
interpolation will work just the same.

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It's just like calling any other variable.

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Now, let's go ahead and create a line.

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That'll just be four dashes.

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Now what we want to do is print
out the items in the list.

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Now we know that the list items
is an array containing hashes.

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What we can do is use
a method called each.

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We'll get into this method a little
bit more in an upcoming course,

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but for right now,
we'll just follow along.

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So we call the method each.

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Now when we call the method each, we use
this new piece of Ruby syntax called

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a block, and then pass in an argument.

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Blocks are written by typing either
curly braces or the words do and end.

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So what this is going to do is take each
item in this array of list items and

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assign it to a variable called item.

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And now, we can print out the item
name and the item quantity.

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Now remember the list items
array is an array of hashes.

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So let's go ahead and

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print out the item['name'] because we want
to know what the name is of the item.

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And we'll also print out quantity and
the item's quantity.

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And then we'll print
out another separator.

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Okay.

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Now that we have this,
let's go ahead and call print_list and

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send in our shopping list.

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Let's run this and see what happens.

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The list name is Groceries,
that item that we're adding is Milk, and

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we're adding one thing of milk.

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Oh, it looks like we
have an error on line 26.

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And the error is, no implicit
conversion of fixnum into String.

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So what we have to do is tell Ruby that
we want this number to be a string.

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And we use the to_s method to do that.

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Let me clear my screen here.

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And we'll run this again and
see what happens.

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Now we're going to add Milk and
one thing of Milk.

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And now here is our grocery list.

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Alright, that looks good, but

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we're going to clean this up
a little bit more in the next video.