1

00:00:00,300 --> 00:00:01,590

So how was that, how much?



2

00:00:02,810 --> 00:00:06,770

I hope you didn't get stuck, but if you did, it's understandable because I'm asking you to combine



3

00:00:06,770 --> 00:00:07,940

three different things here.



4

00:00:08,540 --> 00:00:11,530

So first, let's create a double number.



5

00:00:12,290 --> 00:00:18,860

My is equal to two thousand point something.



6

00:00:19,910 --> 00:00:21,350

And of course, we can check that.



7

00:00:26,260 --> 00:00:32,050

When we pressed play and it will tell us that is a double take now, we can also check that by just



8

00:00:32,050 --> 00:00:39,850

typing my and the autofill thing for us will say, hey, this is a double, which you can see at the



9

00:00:39,850 --> 00:00:40,420

bottom here.



10

00:00:42,210 --> 00:00:45,450

OK, so that is now a double, how do we print that?



11

00:00:45,990 --> 00:00:49,020

Well, you can print that directly to the command line.



12

00:00:50,020 --> 00:00:54,540

This is a bit tricky because when I hit play, that is going to print it out, but it hasn't printed



13

00:00:54,540 --> 00:01:01,470

a double, it's printed a string, because when you do this swift or the system tries to convert this



14

00:01:01,470 --> 00:01:08,040

to a string, which it successfully manages to do, but what's happening really in the background is



15

00:01:08,040 --> 00:01:08,460

this.



16

00:01:09,480 --> 00:01:16,260

It's trying to create a string from my side, so if I hit play, we'll get exactly the same result.



17

00:01:17,010 --> 00:01:22,440

OK, now when you start to create strings, let's say you want to show a user a sentence and say you



18

00:01:22,440 --> 00:01:29,340

have X gigabytes of space left on your device, then you would combine an integer with a string.



19

00:01:29,700 --> 00:01:35,820

And in that case you would have to convert the integer to a string and then add it to the other string



20

00:01:35,820 --> 00:01:37,230

that you want to show to the user.



21

00:01:37,260 --> 00:01:38,550

So that's when you'd actually use it.



22

00:01:39,270 --> 00:01:40,530

So I hope you pass that.



23

00:01:40,750 --> 00:01:41,430

Let's move on.