1
00:00:00,950 --> 00:00:03,990
So when we last left off,
we had printed out our list.

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00:00:05,850 --> 00:00:07,220
And let's go ahead and run this again.

3
00:00:08,440 --> 00:00:11,670
The item is Milk and
we only want one thing of milk.

4
00:00:11,670 --> 00:00:15,090
Okay, let's clean up how
this looks a little bit.

5
00:00:15,090 --> 00:00:19,550
First, since we're sort
of duplicating code here,

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00:00:19,550 --> 00:00:24,150
by printing out a separator, let's go
ahead and make a method out of that.

7
00:00:24,150 --> 00:00:31,030
And we'll call that
method output_separator.

8
00:00:31,030 --> 00:00:34,980
You know what?
Let's call it print_separator.

9
00:00:34,980 --> 00:00:39,170
And we'll give it an argument of
the character that we wanna print.

10
00:00:39,170 --> 00:00:43,586
And we can go ahead and
give this a default value of a dash.

11
00:00:46,667 --> 00:00:52,464
And all this method is going to do
is print that character 80 times.

12
00:00:55,084 --> 00:00:56,764
Now let's go ahead and

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00:00:56,764 --> 00:01:01,284
replace the printing of
the separator with the method name.

14
00:01:06,244 --> 00:01:07,583
Okay.

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00:01:09,944 --> 00:01:13,890
Clear my screen here and run this again.

16
00:01:13,890 --> 00:01:16,330
You know what I can
take out the list here.

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00:01:16,330 --> 00:01:20,300
I can take out the list inspection
since we're printing it on our own now.

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00:01:21,660 --> 00:01:26,670
This name is Groceries, and
the item that we're adding is Milk.

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00:01:26,670 --> 00:01:27,820
And 1.

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00:01:27,820 --> 00:01:31,740
Okay, now we have a separator.

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00:01:31,740 --> 00:01:34,280
But let's go ahead and
clean this up even a little bit more.

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00:01:35,410 --> 00:01:37,410
So now let's go ahead and
indent each line here.

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00:01:38,470 --> 00:01:43,190
So we'll print a tab character
Inside of this list and

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00:01:43,190 --> 00:01:46,580
the item's name and then another plus.

25
00:01:46,580 --> 00:01:50,100
And let's say we'll do three tab
characters here and the quantity.

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00:01:51,150 --> 00:01:55,290
Now I want quantity to be
all on the same line so

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00:01:55,290 --> 00:02:00,690
I'm going to add another plus and
take out that put statement.

28
00:02:03,930 --> 00:02:06,680
And this will create one big string and

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00:02:06,680 --> 00:02:09,480
send it in as an argument
to the puts method.

30
00:02:09,480 --> 00:02:16,056
Let me clear my screen here, click in
to the console and run this again.

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00:02:20,457 --> 00:02:22,230
Okay, this is looking a little bit better.

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00:02:22,230 --> 00:02:27,490
We've got our grocery list, and
our item of milk, and our quantity of one.

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00:02:28,610 --> 00:02:32,330
Let's go ahead and
say that we want to add another list item.

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00:02:34,270 --> 00:02:35,880
Print my screen and run this again.

35
00:02:35,880 --> 00:02:38,060
List name is Groceries.

36
00:02:38,060 --> 00:02:40,860
The item is Milk, and we only want one.

37
00:02:40,860 --> 00:02:43,900
Bread, we're gonna say we
want two loaves of bread.

38
00:02:43,900 --> 00:02:44,740
And that looks good.

39
00:02:44,740 --> 00:02:48,970
We've got a separator in
between each of the items.

40
00:02:48,970 --> 00:02:49,500
But you know what?

41
00:02:49,500 --> 00:02:53,800
Let's go ahead and print the separator at
the end of all the list items instead.

42
00:02:53,800 --> 00:02:57,817
I think that'll look
just a little bit better.

43
00:03:00,137 --> 00:03:03,277
And now let's go ahead and
just add another item to the list.

44
00:03:05,798 --> 00:03:11,930
And in fact before we print the list,
I'm just going to print here's your list.

45
00:03:13,430 --> 00:03:14,280
And a new line.

46
00:03:16,170 --> 00:03:19,260
In fact let's go ahead and
add another message and say great.

47
00:03:20,490 --> 00:03:23,010
Add some items to your list.

48
00:03:25,400 --> 00:03:28,700
Now let me clear my screen here,
there's gonna be more output so

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00:03:28,700 --> 00:03:35,130
I'm gonna make this a little bit
bigger and type ruby shopping_list.rb.

50
00:03:35,130 --> 00:03:37,490
This name is Groceries Great.

51
00:03:37,490 --> 00:03:40,010
Let's add some items to the list.

52
00:03:40,010 --> 00:03:42,730
Milk, we only need one.

53
00:03:42,730 --> 00:03:45,740
Bread, two loaves of bread.

54
00:03:45,740 --> 00:03:48,920
Eggs, let's get three dozen eggs
because we're really hungry.

55
00:03:50,030 --> 00:03:55,780
All right, and here is our grocery list
with our three different items and

56
00:03:55,780 --> 00:03:57,279
the corresponding quantities.

57
00:03:58,470 --> 00:04:02,580
In this course, we've learned about
how arrays and hashes work, and

58
00:04:02,580 --> 00:04:05,300
have even learned some simple iteration.

59
00:04:05,300 --> 00:04:07,060
Don't stop now, though.

60
00:04:07,060 --> 00:04:10,060
Make sure to practice these
concepts on your own, and

61
00:04:10,060 --> 00:04:12,960
practice by building your own programs.

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00:04:12,960 --> 00:04:16,330
If you need inspiration,
check out the extra credit.

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00:04:16,330 --> 00:04:16,950
Happy coding.