1
00:00:00,060 --> 00:00:01,550
Wearable which is why.

2
00:00:02,340 --> 00:00:05,620
But this way of creating wearable will have one problems.

3
00:00:05,640 --> 00:00:10,960
This is because it's not brought scooping it is easily affected by another coat.

4
00:00:11,010 --> 00:00:16,020
But without any airbags let's take this as an example.

5
00:00:16,020 --> 00:00:18,850
We clear a wearable age is equal to 14.

6
00:00:20,310 --> 00:00:29,760
And then we said if this is true then we think that another wearable age is equal to 98.

7
00:00:30,420 --> 00:00:33,270
And then we print out a penis by age

8
00:00:38,130 --> 00:00:40,910
and then we print out the other side age

9
00:00:47,640 --> 00:00:50,190
we may assumed I was my age to be 14.

10
00:00:50,190 --> 00:00:58,830
However you can see it is already evident by another correlation which is here but we may not notice

11
00:00:58,860 --> 00:01:06,510
because there is no error and the age already changed to ninety eight in year six.

12
00:01:06,510 --> 00:01:12,990
We have to add a declaration method which is met and also constant.

13
00:01:13,530 --> 00:01:15,870
That's changed Garbo to be let

14
00:01:21,700 --> 00:01:25,600
and as you can see since let days box copying method.

15
00:01:26,260 --> 00:01:39,430
So even though the age is 98 inside here but the age is still keeping the same with 14 at the outside.

16
00:01:39,430 --> 00:01:48,010
Now this time that all about constant constant is something that after you take away the wearable you

17
00:01:48,010 --> 00:01:50,770
cannot change the data type.

18
00:01:50,770 --> 00:01:57,730
For example you learn the constant user is an object and then we start.

19
00:01:57,740 --> 00:02:07,070
The user is equal to 13 and we will have an error that it is a type ever assignment to a constant variable.

20
00:02:07,300 --> 00:02:10,450
But this does not mean that we cannot change the proper pay.

21
00:02:10,540 --> 00:02:13,850
For example we can add a name to the user.

22
00:02:14,200 --> 00:02:21,860
For example user name is equal to Mike and then we try to pin out a user

23
00:02:25,310 --> 00:02:30,600
and you will see it contain the name Mike inside the object.

24
00:02:30,600 --> 00:02:33,070
We can also do it inside and away.

25
00:02:33,120 --> 00:02:40,020
For example we create a array which already counting or range.

26
00:02:40,200 --> 00:02:44,720
And then you push another foot which is Apple.

27
00:02:46,680 --> 00:02:50,510
And then you know the way.

28
00:02:51,660 --> 00:02:57,490
Now as you can see that we continue to string here.

29
00:02:57,570 --> 00:03:00,780
So this is the difference between what led and constant.