1 00:00:01,370 --> 00:00:03,250 Hey, guys, welcome back to the calls. 2 00:00:03,800 --> 00:00:07,890 So in this, we don't we will learn a new concept called called biodefense. 3 00:00:09,420 --> 00:00:12,000 So our problem is still the same. 4 00:00:13,620 --> 00:00:18,390 That we have to implement a snap function that does have two numbers. 5 00:00:18,990 --> 00:00:23,910 So the problem with the last case was so we were passing by values. 6 00:00:24,300 --> 00:00:28,050 So suppose this is A and B and the values are seven in five. 7 00:00:28,770 --> 00:00:30,930 So this is my function. 8 00:00:30,960 --> 00:00:31,680 My step. 9 00:00:32,800 --> 00:00:35,620 Then I told you that this, eh, this, eh? 10 00:00:35,680 --> 00:00:38,860 And they say they are different because they have different scope. 11 00:00:39,580 --> 00:00:42,210 Now, I was calling the function by venue. 12 00:00:42,670 --> 00:00:45,640 So by voluminous, what I will do, I will pass the venue. 13 00:00:46,770 --> 00:00:50,160 Seven and similarly, I will pass D Relu five. 14 00:00:50,580 --> 00:00:54,870 And then in this ad function, I was slapping these numbers. 15 00:00:55,800 --> 00:00:56,040 OK. 16 00:00:56,310 --> 00:01:00,270 So suppling these numbers will not have any effect on these numbers. 17 00:01:01,110 --> 00:01:02,130 So that is the reason. 18 00:01:02,420 --> 00:01:07,320 And the main function, the values of NDB are not changed at all. 19 00:01:09,100 --> 00:01:15,350 Now, what do you want to do is I want to implement this Web function in such a way that the values 20 00:01:15,370 --> 00:01:17,380 in main functions are changed. 21 00:01:18,310 --> 00:01:22,710 So for this, we have something called called by defense. 22 00:01:23,470 --> 00:01:30,490 So what we will do, instead of passing values, instead of passing values, we will pass the bucket. 23 00:01:31,680 --> 00:01:33,310 We will pass the boxes. 24 00:01:33,910 --> 00:01:39,130 So instead of passing that way, Lou, I will pass boxes and how we can do so. 25 00:01:39,460 --> 00:01:42,010 So we have something called a reference variable. 26 00:01:42,830 --> 00:01:44,920 A reference variable. 27 00:01:46,680 --> 00:01:48,930 OK, so we have something called the defense variable. 28 00:01:49,350 --> 00:01:52,350 So what I will do, I will create nicknames. 29 00:01:53,160 --> 00:01:56,580 So let's see with the help of code word changes we have to do. 30 00:01:58,910 --> 00:02:00,580 So this was my call by value. 31 00:02:01,060 --> 00:02:05,540 I am creating a new file, let's call it called Bio-Reference. 32 00:02:18,210 --> 00:02:19,440 Copy the entire code. 33 00:02:22,920 --> 00:02:24,540 Now, what is the thing that we have to do? 34 00:02:24,900 --> 00:02:29,100 We have to pass the values Bio-Reference gnawed by value. 35 00:02:29,550 --> 00:02:32,610 So for that, we have to create a reference variable. 36 00:02:33,040 --> 00:02:36,600 And for making that, eventually, will we just have to do this? 37 00:02:38,880 --> 00:02:42,480 And this and that is all. 38 00:02:42,600 --> 00:02:45,240 So this is called call by reference. 39 00:02:45,360 --> 00:02:47,050 We are passing the entire book. 40 00:02:47,430 --> 00:02:48,780 We are not passing the values. 41 00:02:49,400 --> 00:02:49,660 OK. 42 00:02:53,370 --> 00:02:59,770 Now, you can see yourself before stepping in Maine, seven and five after sleeping in Maine, five 43 00:02:59,770 --> 00:03:00,250 and seven. 44 00:03:00,520 --> 00:03:02,230 So the values are getting slabbed. 45 00:03:02,490 --> 00:03:05,290 My step function is working perfect. 46 00:03:08,120 --> 00:03:08,350 OK. 47 00:03:08,930 --> 00:03:10,520 So you can remove all this stuff. 48 00:03:18,110 --> 00:03:22,880 So before slapping, we lose our seven and five, and after serving, they may lose us five and seven. 49 00:03:23,840 --> 00:03:27,680 So my step function, my step function is working, correct? 50 00:03:29,320 --> 00:03:33,090 So the minor change we have to do this is call call by defense. 51 00:03:33,900 --> 00:03:39,100 So if you will change the name, for example, let's call it X, let's call it Ray. 52 00:03:39,270 --> 00:03:41,980 It doesn't have any effect outward will be correct. 53 00:03:43,740 --> 00:03:46,560 OK, so we have to change name here also so and X. 54 00:03:50,360 --> 00:03:51,130 Exit was. 55 00:03:53,830 --> 00:03:58,150 Why and why equals temp. 56 00:04:01,870 --> 00:04:05,410 So their values are getting swept seven in five, five and seven. 57 00:04:06,250 --> 00:04:08,680 Now let's see how cold biodefense is working. 58 00:04:12,400 --> 00:04:14,560 So I'm calling this function NDB. 59 00:04:16,870 --> 00:04:17,610 So this is my. 60 00:04:18,490 --> 00:04:25,800 And this is my B values are seven and five, and I am creating at friends variable. 61 00:04:26,260 --> 00:04:27,160 So what will happen? 62 00:04:27,490 --> 00:04:33,680 This bucket will come here and the name of this bucket in this function is X. 63 00:04:34,540 --> 00:04:42,160 Similarly, this bucket will come here and the name of this bucket in my step function is Y. 64 00:04:43,440 --> 00:04:47,770 We lose our seven and five because we have bossed the entire bookit. 65 00:04:49,590 --> 00:04:51,030 We are passing the end there. 66 00:04:51,180 --> 00:04:51,660 Look, it's. 67 00:04:53,520 --> 00:04:56,320 And now we are slipping with the help of X and Y. 68 00:04:56,430 --> 00:05:01,350 So with that X and Y, X and Y, yeah, nickname X and Y are nicknames. 69 00:05:01,970 --> 00:05:03,150 X is nickname Offie. 70 00:05:03,270 --> 00:05:04,800 Y is nickname of. 71 00:05:06,750 --> 00:05:12,010 B, so any changes in X anyway will result in the changes of Will so. 72 00:05:12,630 --> 00:05:14,490 So here the values are getting stabbed. 73 00:05:14,900 --> 00:05:20,760 Similarly, the Israelis will also get slapped because this bucket is the same as this bucket. 74 00:05:23,140 --> 00:05:23,440 OK. 75 00:05:24,650 --> 00:05:30,300 So now you know, the difference between call by value and Kalwaria fence, so-called weigh value, 76 00:05:30,330 --> 00:05:36,200 what it does, it will just give the value and what coalbed Air France really does. 77 00:05:36,680 --> 00:05:38,750 It will pass on the entire bucket. 78 00:05:41,430 --> 00:05:41,720 OK. 79 00:05:43,330 --> 00:05:43,870 Thank you.