WEBVTT 1 00:00:01.547 --> 00:00:04.192 Hey there, it's now time for the final 2 00:00:04.192 --> 00:00:06.108 coding challenge in this course, 3 00:00:06.108 --> 00:00:08.950 so that you can apply some of the new ES6 features 4 00:00:08.950 --> 00:00:12.508 that you just learned in this section. 5 00:00:12.508 --> 00:00:15.177 So in this challenge, what I want you to do 6 00:00:15.177 --> 00:00:17.025 is to imagine that you're working 7 00:00:17.025 --> 00:00:20.475 in a small town administration and that you're in charge 8 00:00:20.475 --> 00:00:24.306 of two town elements, parks and streets. 9 00:00:24.306 --> 00:00:26.286 And this is a very small town, 10 00:00:26.286 --> 00:00:30.128 so we currently only have three parks and four streets, 11 00:00:30.128 --> 00:00:34.493 but more parks or streets may be added in the future. 12 00:00:34.493 --> 00:00:36.859 Also, all of the parks and streets 13 00:00:36.859 --> 00:00:40.136 have to have a name and a build year. 14 00:00:40.136 --> 00:00:42.300 Now, at an end-of-the-year meeting, 15 00:00:42.300 --> 00:00:46.699 your boss wants a final report with the following data. 16 00:00:46.699 --> 00:00:49.127 First, he wants to know the tree density 17 00:00:49.127 --> 00:00:52.177 of each park in the town, and that's calculated 18 00:00:52.177 --> 00:00:56.344 by dividing the total number of trees by the park area. 19 00:00:57.410 --> 00:01:01.012 Second, the average age of each town's park 20 00:01:01.012 --> 00:01:03.587 and that one is calumniated by adding up 21 00:01:03.587 --> 00:01:08.302 all of the ages and dividing it by the number of parks. 22 00:01:08.302 --> 00:01:10.299 The third data that your boss wants to know 23 00:01:10.299 --> 00:01:14.282 is the name of the park that has more than 1,000 trees. 24 00:01:14.282 --> 00:01:16.838 So your boss knows that there is one park like this 25 00:01:16.838 --> 00:01:20.168 but he wants to know the name of that park. 26 00:01:20.168 --> 00:01:23.400 Okay, and as of the streets, we want to know 27 00:01:23.400 --> 00:01:26.374 the total and average length of the town's streets 28 00:01:26.374 --> 00:01:30.417 and also a size classification of each of the streets, 29 00:01:30.417 --> 00:01:32.940 and these should be classified into tiny, 30 00:01:32.940 --> 00:01:35.357 small, normal, big, and huge. 31 00:01:36.204 --> 00:01:37.816 And if the size is unknown, 32 00:01:37.816 --> 00:01:40.639 that the default is simply normal. 33 00:01:40.639 --> 00:01:44.396 And all this report data should be printed to the console 34 00:01:44.396 --> 00:01:45.675 so that it looks a little bit 35 00:01:45.675 --> 00:01:48.397 like this output that I have here. 36 00:01:48.397 --> 00:01:51.426 So we have the average age of our parks, 37 00:01:51.426 --> 00:01:54.534 and then in here, we also have the tree density 38 00:01:54.534 --> 00:01:56.520 of our three parks, and finally 39 00:01:56.520 --> 00:01:59.808 the park that has more than 1,000 trees. 40 00:01:59.808 --> 00:02:01.887 And for the streets, we have the total 41 00:02:01.887 --> 00:02:04.858 and average length and then the size classification 42 00:02:04.858 --> 00:02:08.520 for all of the four streets, and that's it. 43 00:02:08.520 --> 00:02:10.686 Now, in this challenge, I'm not gonna give you 44 00:02:10.686 --> 00:02:14.499 detailed steps on how to solve it like I did before, 45 00:02:14.499 --> 00:02:16.806 because I think that you're really ready 46 00:02:16.806 --> 00:02:19.399 to do it on your own at this point. 47 00:02:19.399 --> 00:02:22.058 And that being said, the goal of this challenge 48 00:02:22.058 --> 00:02:25.477 is of course that you use some of the ES6 concepts 49 00:02:25.477 --> 00:02:28.124 that we talked about just in this section. 50 00:02:28.124 --> 00:02:31.240 Things like classes, subclasses, template strings, 51 00:02:31.240 --> 00:02:34.015 default parameters, maps, arrow functions, 52 00:02:34.015 --> 00:02:36.848 and destructuring, for example, 53 00:02:36.848 --> 00:02:39.235 and of course, you don't need to build anything 54 00:02:39.235 --> 00:02:41.655 super fancy here because all I want 55 00:02:41.655 --> 00:02:43.596 with this challenge is for you to practice 56 00:02:43.596 --> 00:02:47.311 some of the new ES6 features here in this challenge. 57 00:02:47.311 --> 00:02:50.241 So, good luck with this one, and if you struggle 58 00:02:50.241 --> 00:02:53.193 with anything, then you can just watch the next video 59 00:02:53.193 --> 00:02:56.283 to see my personal solution to this challenge. 60 00:02:56.283 --> 00:02:59.866 But first, please try to do it on your own.