1 00:00:00,940 --> 00:00:09,550 Let's finish up with a conditional statement by talking about two, three and four C values, because 2 00:00:09,550 --> 00:00:16,379 I have kept mentioning about true fee and foresee values many times, but we haven't talked about. 3 00:00:16,420 --> 00:00:18,000 So this is the time. 4 00:00:18,010 --> 00:00:21,220 So what is true fee and what is false values? 5 00:00:21,220 --> 00:00:24,400 So with the picture even explain everything. 6 00:00:24,400 --> 00:00:26,020 So let's get going. 7 00:00:26,020 --> 00:00:28,060 Let me show you what it means. 8 00:00:28,780 --> 00:00:29,380 Okay. 9 00:00:30,280 --> 00:00:40,480 So in JavaScript, a true free value is a value that considered true when evaluated in a boolean context. 10 00:00:41,020 --> 00:00:46,510 All values are true values unless they are defined as forcing. 11 00:00:47,020 --> 00:00:49,780 So it simply means that. 12 00:00:49,780 --> 00:00:55,120 So let me have some space here and let me comment out this. 13 00:00:55,120 --> 00:01:00,880 Once you are done with that, I'll provide the source code for you if want to have a look. 14 00:01:01,150 --> 00:01:03,280 So here is. 15 00:01:04,280 --> 00:01:04,849 That. 16 00:01:04,849 --> 00:01:06,860 And let's talk about true fee. 17 00:01:09,580 --> 00:01:14,140 Trophy and forcing values. 18 00:01:14,980 --> 00:01:23,800 So trophy values simply means that when the logic is being evaluated in the context of a boolean, then. 19 00:01:24,720 --> 00:01:28,320 It's considered to be true because now you made mention of the E! 20 00:01:28,320 --> 00:01:31,650 Statement, so it's time to talk about the truth and false values. 21 00:01:32,040 --> 00:01:43,320 So an example of true field values and then example of the forsey values. 22 00:01:44,150 --> 00:01:48,350 So value, which considered to be false is called false values. 23 00:01:48,440 --> 00:01:50,570 And one is the. 24 00:01:51,440 --> 00:01:52,880 Force itself. 25 00:01:54,260 --> 00:01:57,320 And then next one is zero. 26 00:01:57,710 --> 00:01:59,900 Next one is empty string. 27 00:01:59,930 --> 00:02:05,390 Next one is narrow and next one is undefined. 28 00:02:06,470 --> 00:02:12,620 So apart from these ones, any other value is considered to be true. 29 00:02:13,280 --> 00:02:14,570 So a moment of truth. 30 00:02:15,620 --> 00:02:19,030 Now let's declare a variable here. 31 00:02:19,040 --> 00:02:21,080 Let's let 32 00:02:24,290 --> 00:02:28,550 each simple one is equal to empty string. 33 00:02:28,940 --> 00:02:38,060 So now if I evaluate this one in a boolean context, that means if statement or you can use ternary 34 00:02:38,060 --> 00:02:38,780 operator. 35 00:02:39,080 --> 00:02:40,760 Unless make your if statement. 36 00:02:40,850 --> 00:02:43,670 So if h. 37 00:02:44,700 --> 00:02:47,370 Meaning if h exists. 38 00:02:47,670 --> 00:02:50,700 Meaning this code is going to run. 39 00:02:51,590 --> 00:02:52,490 Let me see. 40 00:02:53,210 --> 00:02:54,050 Yes. 41 00:02:54,840 --> 00:02:58,860 It is true else. 42 00:02:59,580 --> 00:03:00,920 It is false value. 43 00:03:00,930 --> 00:03:01,920 Then. 44 00:03:02,190 --> 00:03:03,960 Console that log. 45 00:03:04,090 --> 00:03:06,030 Console that log. 46 00:03:06,390 --> 00:03:07,320 You will say. 47 00:03:08,610 --> 00:03:09,450 Sorry. 48 00:03:14,940 --> 00:03:15,930 It is false. 49 00:03:16,290 --> 00:03:22,840 So save it now and see that it is false because it is an empty string, which is the. 50 00:03:22,860 --> 00:03:24,390 So it is false. 51 00:03:24,420 --> 00:03:29,390 If I change this 1 to 0 zero is false value. 52 00:03:29,400 --> 00:03:29,790 Right? 53 00:03:29,790 --> 00:03:31,360 So it's going to be false. 54 00:03:31,360 --> 00:03:37,080 So this code run, if I save the code again still I still see. 55 00:03:37,080 --> 00:03:38,630 Sorry, it is false. 56 00:03:38,640 --> 00:03:48,360 If I change the edge to now if I save it refresh it is still false because Noor is considered to be 57 00:03:48,360 --> 00:03:49,080 forcing. 58 00:03:49,200 --> 00:03:57,330 If I change this one to undefined again, undefined here is false value. 59 00:03:57,330 --> 00:04:01,590 So it's going to be also asked false, which is this. 60 00:04:01,800 --> 00:04:08,130 But if I provide even zero here you are h zero again is false. 61 00:04:08,130 --> 00:04:09,930 So pay attention to this. 62 00:04:10,170 --> 00:04:11,370 It's really important. 63 00:04:11,430 --> 00:04:14,280 We are trying to make condition perfect. 64 00:04:14,280 --> 00:04:18,180 So any other value apart from this is considered to be true. 65 00:04:18,390 --> 00:04:21,180 So if I provide, let's say 20. 66 00:04:22,190 --> 00:04:22,880 If I save it. 67 00:04:22,880 --> 00:04:24,080 Yes, it is true. 68 00:04:24,650 --> 00:04:26,480 If I provide even a string. 69 00:04:28,500 --> 00:04:31,050 Yes, it is true that provide. 70 00:04:31,050 --> 00:04:32,490 Yes, whatever. 71 00:04:32,490 --> 00:04:33,660 Here is a string. 72 00:04:34,050 --> 00:04:35,460 Yes, it is true. 73 00:04:35,550 --> 00:04:39,630 So any other value apart from force values are considered to be true. 74 00:04:39,630 --> 00:04:44,310 So when making conditions pay attention to these values, it's really important. 75 00:04:44,670 --> 00:04:45,780 The next video. 76 00:04:45,870 --> 00:04:49,550 Let's get started with JavaScript loops. 77 00:04:49,560 --> 00:04:52,140 That is repetition of task.