WEBVTT 00:00.680 --> 00:03.040 Now that you know how to use while loop. 00:03.160 --> 00:06.920 Okay, now let's go see how does for loop work. 00:06.960 --> 00:11.080 Okay, so let's create a new file here. 00:11.120 --> 00:13.720 Name it for dot pi. 00:14.200 --> 00:18.960 And here I am going to create a simple example that you could learn. 00:19.000 --> 00:19.760 Okay. 00:19.800 --> 00:30.480 A for loop is used for iterating over a sequence that is either a list tuple a dictionary a set, or 00:30.520 --> 00:31.520 even a string. 00:31.560 --> 00:31.960 Okay. 00:32.400 --> 00:33.440 So very easy. 00:33.720 --> 00:34.600 Now let's go. 00:35.240 --> 00:38.080 We have seen a lot of examples about for loop. 00:38.080 --> 00:45.040 Now let's go and see how we can use for loop to iterate through a string. 00:45.080 --> 00:45.840 Okay. 00:45.880 --> 00:52.880 Let's use for x in for example we have banana. 00:54.040 --> 00:56.840 And here let's print x. 00:57.720 --> 00:58.560 Very easy. 01:00.480 --> 01:03.280 Let me use Python. 01:03.280 --> 01:06.440 And then we have for dot pi hit enter. 01:06.480 --> 01:12.360 Now you see we are printing all and everything which is inside here. 01:12.360 --> 01:13.490 And that is banana. 01:13.490 --> 01:16.850 We are printing each letter here. 01:16.890 --> 01:17.250 Okay. 01:17.810 --> 01:19.850 This is one thing that we could use. 01:20.330 --> 01:22.050 And also it has a lot of usage. 01:22.090 --> 01:22.330 Okay. 01:22.370 --> 01:31.250 This for loop for example we are going to search for something inside a list or inside a dictionary, 01:31.250 --> 01:32.410 inside a tuple. 01:32.450 --> 01:33.010 Anything. 01:33.050 --> 01:35.530 See it or something else. 01:35.570 --> 01:36.290 Okay. 01:36.330 --> 01:42.410 Let's go with uh simple search program okay. 01:43.170 --> 01:45.250 Let's use again this fluids. 01:45.370 --> 01:46.330 It is equal to. 01:46.370 --> 01:51.410 For example uh we have apple. 01:52.730 --> 01:54.130 We have banana. 01:55.970 --> 01:59.090 We have Jerry. 01:59.130 --> 01:59.570 Okay. 02:00.010 --> 02:03.570 Let's just imagine we have this three part okay here. 02:03.570 --> 02:09.570 And I am trying to search for for example for Jerry. 02:09.610 --> 02:16.730 If this cherry is inside here, if it is inside then we can print it. 02:16.770 --> 02:17.450 If not. 02:17.450 --> 02:20.730 So do not print it okay. 02:20.730 --> 02:24.690 So let's use for x in Roids. 02:26.530 --> 02:30.170 And here we can use a if condition. 02:30.490 --> 02:30.890 If. 02:33.210 --> 02:37.170 X is equal to for example banana. 02:37.290 --> 02:37.690 Okay. 02:38.490 --> 02:46.970 If it is equals to banana then print x for me and then use break statement. 02:47.010 --> 02:47.850 Very easy. 02:47.890 --> 02:52.930 Now we have a simple search engine that is searching banana inside the fruit. 02:53.090 --> 02:53.530 Okay. 02:54.130 --> 03:05.130 And I also can do something at a text here like the banana is here. 03:07.290 --> 03:08.770 And use concatenation. 03:08.810 --> 03:09.450 Save it. 03:10.330 --> 03:11.090 Come here. 03:11.090 --> 03:15.410 Use clear and then run this. 03:15.650 --> 03:16.850 You see the banana is here. 03:16.850 --> 03:17.530 And it is. 03:18.130 --> 03:19.730 Printing the banana for me. 03:20.010 --> 03:22.050 What if I search for something else? 03:22.050 --> 03:24.210 For example, a phone or something? 03:24.250 --> 03:25.090 Okay. 03:25.090 --> 03:27.730 And now it will do nothing for me. 03:28.250 --> 03:29.050 You see that? 03:29.050 --> 03:29.530 Okay. 03:29.690 --> 03:32.010 Also, we can do one more thing. 03:32.010 --> 03:33.970 And that is the else part. 03:34.010 --> 03:34.450 Okay. 03:35.690 --> 03:37.340 Else print. 03:37.820 --> 03:39.860 For example, the banana. 03:41.420 --> 03:45.220 Banana is not in the list. 03:49.580 --> 03:56.260 Now, if I execute this, you see that the banana is not in the list and why it is printing this three 03:56.260 --> 03:56.620 times. 03:56.620 --> 04:00.660 That is because we have three items in the list. 04:00.660 --> 04:03.940 So for each item it is printing that for me. 04:04.860 --> 04:05.580 And. 04:07.660 --> 04:10.460 So what if I. 04:10.460 --> 04:11.460 Okay that is it. 04:11.900 --> 04:21.260 How we can use a for loop to go through uh, a list uh string anything. 04:21.300 --> 04:22.140 Okay. 04:22.180 --> 04:27.820 Dictionary or even a tuple and set and a lot of things. 04:27.860 --> 04:28.220 Okay. 04:28.260 --> 04:36.380 It's very simple example that you learn how to create your own, uh, searching machine inside a list. 04:36.380 --> 04:43.700 Or it could be a string or even it could be a very big list of, for example, names or anything. 04:43.860 --> 04:44.460 Okay. 04:44.500 --> 04:48.460 So let's go and see some other thing.