1
00:00:00,090 --> 00:00:07,900
Next we will talk about the string membership based and using this test.

2
00:00:07,910 --> 00:00:16,490
We can test you for substring exists within a string or not using the keyword in.

3
00:00:16,490 --> 00:00:20,840
So here we have a variable a which is a string.

4
00:00:21,350 --> 00:00:28,880
Let us know best if the character B is present in this particular variable E.

5
00:00:29,660 --> 00:00:34,680
And for that let's type B in.

6
00:00:35,060 --> 00:00:45,860
In this expression is going to return a boolean value that is either a true or false so B is that in

7
00:00:46,100 --> 00:00:47,540
the variable e.

8
00:00:47,840 --> 00:00:57,110
Similarly we have another operator not in which it returns true if it does not find a character or a

9
00:00:57,110 --> 00:01:02,550
substring in the string in a string or a sequence.

10
00:01:02,780 --> 00:01:15,070
Let's say searching for the characters a B B may have been e so NATO's exhibit and this it returns true.

11
00:01:15,110 --> 00:01:25,550
Now if we use d operator not in a and then execute it you'd return false because because these three

12
00:01:25,550 --> 00:01:32,450
characters are present in debatable E string operators are used to validate the membership of a value

13
00:01:32,510 --> 00:01:33,950
in a particular sequence.