0 1 00:00:00,330 --> 00:00:00,630 All right. 1 2 00:00:00,630 --> 00:00:06,300 So in the next lesson you're going to tackle the interactive challenge where you have to write the code 2 3 00:00:06,600 --> 00:00:08,270 and I will check your solutions 3 4 00:00:08,280 --> 00:00:09,720 behind the scenes. 4 5 00:00:09,720 --> 00:00:11,630 So this is what you should see. 5 6 00:00:11,700 --> 00:00:17,310 This is the BMI calculator challenge, and there's a little bit of description about what BMIs are and 6 7 00:00:17,310 --> 00:00:18,760 what they’re used for. 7 8 00:00:18,780 --> 00:00:24,810 Now the most important thing is that I've included the formula to calculate the BMI which is the weight 8 9 00:00:24,810 --> 00:00:27,120 divided by the height squared. 9 10 00:00:27,210 --> 00:00:30,670 And this is weight in kilograms and height in meters. 10 11 00:00:30,690 --> 00:00:37,680 So your challenge is to create a function that takes the weight and the height as inputs, like so, 11 12 00:00:37,860 --> 00:00:44,640 and to be able to give the output, which is going to be equal to the BMI, so that if I run this line 12 13 00:00:44,640 --> 00:00:50,850 of code using the function that you create, which is going to be called bmiCalculator, I should be able 13 14 00:00:50,850 --> 00:00:55,300 to get the BMI inside this variable called bmi. 14 15 00:00:55,470 --> 00:01:00,810 Now, the order of your inputs matter in this case. You’re going to have to put the weight as an input 15 16 00:01:00,810 --> 00:01:05,810 first and then the height as an input in order to satisfy this line of code. 16 17 00:01:05,880 --> 00:01:12,270 So you can copy what's inside the index.js file in here, and you can paste it into the Snippets 17 18 00:01:12,270 --> 00:01:20,700 tool here to write your code and to test your code inside the Chrome Developer Tools and use the console. 18 19 00:01:20,730 --> 00:01:27,210 So, if you’re here, you can activate this line of code, and try to write your function here, so that when 19 20 00:01:27,210 --> 00:01:34,820 you console.log your BMI variable, you should be getting the same value back as any BMI calculator online. 20 21 00:01:34,830 --> 00:01:40,800 Now once you're happy with your function then you can go ahead and click Check solution in order to 21 22 00:01:40,800 --> 00:01:42,660 check to see if you got it right. 22 23 00:01:42,900 --> 00:01:47,730 And once you're done then you can go ahead and continue on to the next lesson, where I’ll go through the solution 23 24 00:01:47,730 --> 00:01:48,780 with you step by step.