1 00:00:00,660 --> 00:00:04,170 Again, I hope that you managed to do this. 2 00:00:04,170 --> 00:00:08,730 So let me show you how I did it. 3 00:00:08,730 --> 00:00:10,920 So let's start by getting this code 4 00:00:10,920 --> 00:00:12,900 from the other challenge. 5 00:00:12,900 --> 00:00:15,120 So coding challenge number 1, 6 00:00:15,120 --> 00:00:19,833 because, of course, we don't have to repeat the same code. 7 00:00:23,070 --> 00:00:25,500 So here we have the mass and the height 8 00:00:25,500 --> 00:00:28,530 of both John and Mark, 9 00:00:28,530 --> 00:00:32,100 and we already have their BMIs calculated. 10 00:00:32,100 --> 00:00:37,100 We also have this condition here, basically, already. 11 00:00:37,140 --> 00:00:38,996 So this operation here already tells us 12 00:00:38,996 --> 00:00:42,843 whether Mark has a higher BMI or not, right? 13 00:00:43,710 --> 00:00:46,323 So let's get rid of this, 14 00:00:47,310 --> 00:00:50,043 and so let's write our if/else statement. 15 00:00:51,060 --> 00:00:56,060 So if BMIMark is greater than BMIJohn, 16 00:00:58,320 --> 00:01:03,320 and here we could have just used this variable, right? 17 00:01:03,390 --> 00:01:07,650 So we could have written markHigherBMI right here, 18 00:01:07,650 --> 00:01:09,600 but as I said in the previous lecture, 19 00:01:09,600 --> 00:01:10,950 it's actually more common 20 00:01:10,950 --> 00:01:13,980 to write the condition directly in here. 21 00:01:13,980 --> 00:01:17,130 So let's get rid of this variable here, 22 00:01:17,130 --> 00:01:21,070 and then let's come here and get this string 23 00:01:23,550 --> 00:01:27,240 that we want to then log to the console. 24 00:01:27,240 --> 00:01:28,653 So console.log. 25 00:01:30,360 --> 00:01:33,090 And so this makes sense, right? 26 00:01:33,090 --> 00:01:36,330 So if BMIMark is greater than BMIJohn, 27 00:01:36,330 --> 00:01:38,047 then we log to the console, 28 00:01:38,047 --> 00:01:40,407 "Mark's BMI is higher than John's!" 29 00:01:41,580 --> 00:01:45,090 and if not, then we use the else statement. 30 00:01:45,090 --> 00:01:46,593 So let's copy this one here. 31 00:01:52,260 --> 00:01:56,607 So in this case, "John's BMI is higher than Mark's!" 32 00:01:57,750 --> 00:01:59,340 And actually, let's log both of them 33 00:01:59,340 --> 00:02:02,373 to the console here first, 34 00:02:04,020 --> 00:02:06,840 just so we see if our if/else statement 35 00:02:06,840 --> 00:02:09,300 is working as expected. 36 00:02:09,300 --> 00:02:12,933 So BMIMark and BMIJohn. 37 00:02:13,890 --> 00:02:14,723 And as you see here, 38 00:02:14,723 --> 00:02:17,523 the VSCode autocompletion is pretty smart. 39 00:02:19,380 --> 00:02:21,963 Give it a save. Let's try it out. 40 00:02:24,000 --> 00:02:28,050 And we see "John's BMI is higher than Mark's!" 41 00:02:28,050 --> 00:02:30,330 So this one is Mark's, this one is John's, 42 00:02:30,330 --> 00:02:33,270 and indeed, John's BMI is higher. 43 00:02:33,270 --> 00:02:36,430 And so basically, this condition here 44 00:02:37,410 --> 00:02:39,240 turned out to be false, 45 00:02:39,240 --> 00:02:41,583 and the else block was executed. 46 00:02:42,480 --> 00:02:47,480 So let's try the same now with this first set of data here. 47 00:02:47,760 --> 00:02:51,270 And I'm commenting them out, again, using command slash, 48 00:02:51,270 --> 00:02:53,613 or control slash on Windows. 49 00:02:54,450 --> 00:02:56,373 So I need to comment out this one. 50 00:02:57,990 --> 00:03:02,370 Okay, give it a save, and now we should see the opposite. 51 00:03:02,370 --> 00:03:05,913 And indeed, now Mark's BMI is higher than John's. 52 00:03:07,500 --> 00:03:11,073 So that is part 1, right? 53 00:03:12,360 --> 00:03:17,360 And now part 2 is to actually write a template string, 54 00:03:17,580 --> 00:03:20,253 or this would be called a template literal. 55 00:03:21,210 --> 00:03:22,353 We just fix that. 56 00:03:23,220 --> 00:03:25,260 So we should use a template literal 57 00:03:25,260 --> 00:03:28,020 to include the actual BMI values, 58 00:03:28,020 --> 00:03:30,333 so like this here, between parentheses. 59 00:03:31,530 --> 00:03:32,823 So let's do that, 60 00:03:34,050 --> 00:03:37,173 and so we're gonna transform this to backticks. 61 00:03:42,030 --> 00:03:44,340 So that's the first thing, 62 00:03:44,340 --> 00:03:48,600 and then let's see the template again. 63 00:03:48,600 --> 00:03:52,470 Okay, so after the BMI, we included parentheses, 64 00:03:52,470 --> 00:03:54,180 and then in the parentheses 65 00:03:54,180 --> 00:03:56,460 is where we want the actual value. 66 00:03:56,460 --> 00:04:00,090 And so this is where we put essentially the placeholder. 67 00:04:00,090 --> 00:04:02,403 So here, we will put BMIMark, 68 00:04:10,437 --> 00:04:12,520 and here, BMIJohn, right? 69 00:04:16,560 --> 00:04:19,503 And now let's just copy this to make it a bit faster. 70 00:04:22,710 --> 00:04:24,983 Mark, and then here, John. 71 00:04:31,560 --> 00:04:32,393 Okay. 72 00:04:33,540 --> 00:04:35,040 Let's see. 73 00:04:35,040 --> 00:04:39,243 And yeah, that works just fine. 74 00:04:40,320 --> 00:04:43,380 Cool. So with this, we solved the challenge. 75 00:04:43,380 --> 00:04:46,080 And again, if you did it in a slightly different way, 76 00:04:46,080 --> 00:04:47,310 don't worry at all. 77 00:04:47,310 --> 00:04:50,430 That's completely normal, and it's actually a good thing. 78 00:04:50,430 --> 00:04:52,440 It means that you're basically finding 79 00:04:52,440 --> 00:04:56,820 your own style of coding, which is really a good thing, 80 00:04:56,820 --> 00:04:58,830 so don't worry about that. 81 00:04:58,830 --> 00:05:02,760 What matters is that you actually used an if/else statement. 82 00:05:02,760 --> 00:05:04,710 That was, of course, mandatory. 83 00:05:04,710 --> 00:05:08,490 Otherwise, you couldn't have made this work at all. 84 00:05:08,490 --> 00:05:09,323 All right? 85 00:05:09,323 --> 00:05:11,340 So this was a lot of fun, 86 00:05:11,340 --> 00:05:15,300 because we actually made our code do something now. 87 00:05:15,300 --> 00:05:17,853 I hope you can really feel that as well.