1 00:00:02,320 --> 00:00:04,860 In this bonus module, 2 00:00:04,860 --> 00:00:09,220 we're going to dive into Modern NodeJS Core. 3 00:00:09,220 --> 00:00:12,600 And I put the Modern between quotes here, 4 00:00:12,600 --> 00:00:16,410 because you shouldn't take it too literally. 5 00:00:16,410 --> 00:00:18,110 What you learn in this course 6 00:00:18,110 --> 00:00:22,030 is 100% correct, 100% up to date, 7 00:00:22,030 --> 00:00:25,770 and used in the vast majority of projects. 8 00:00:25,770 --> 00:00:28,630 Now, obviously, I didn't count all projects, 9 00:00:28,630 --> 00:00:30,760 but if you look out there in the wild, 10 00:00:30,760 --> 00:00:32,340 in open source projects, 11 00:00:32,340 --> 00:00:34,110 if you explore other tutorials, 12 00:00:34,110 --> 00:00:37,640 if you explore any Node code basis you can find, 13 00:00:37,640 --> 00:00:40,260 you will see exactly the kind of code in there, 14 00:00:40,260 --> 00:00:42,700 which we wrote throughout this course. 15 00:00:42,700 --> 00:00:45,040 Nonetheless, it is important to realize 16 00:00:45,040 --> 00:00:47,850 that over the years of Core's NodeJS 17 00:00:47,850 --> 00:00:51,600 and JavaScript itself, evolved. 18 00:00:51,600 --> 00:00:55,670 JavaScript now is not the same as JavaScript nine 19 00:00:55,670 --> 00:00:57,380 or 10 years ago, 20 00:00:57,380 --> 00:01:01,620 But that was when NodeJS was created initially. 21 00:01:01,620 --> 00:01:06,620 Therefore NodeJS was created at a time where in JavaScript, 22 00:01:06,700 --> 00:01:08,850 we simply didn't have the same amount 23 00:01:08,850 --> 00:01:11,100 of features available as we do now. 24 00:01:11,100 --> 00:01:16,100 And therefore, naturally NodeJs is missing some features. 25 00:01:16,950 --> 00:01:20,970 r at least the main NodeJs code you write 26 00:01:20,970 --> 00:01:24,400 does not use all those latest features. 27 00:01:24,400 --> 00:01:27,160 But that does not mean that you can't use them in general. 28 00:01:27,160 --> 00:01:31,760 NodeJS supports modern JavaScript syntax features. 29 00:01:31,760 --> 00:01:33,590 And in this Module, 30 00:01:33,590 --> 00:01:37,590 I'll have a look at two features which landed 31 00:01:37,590 --> 00:01:40,660 in NodeJS which you can use now, 32 00:01:40,660 --> 00:01:43,090 which might be interesting to you. 33 00:01:43,090 --> 00:01:45,620 And that will be ES Modules, 34 00:01:45,620 --> 00:01:47,610 simply a different way of importing 35 00:01:47,610 --> 00:01:52,610 and exporting files as you will see and Promises. 36 00:01:52,610 --> 00:01:55,950 Now, especially for Promises, this might be surprising 37 00:01:55,950 --> 00:01:58,090 because we already worked with Promises 38 00:01:58,090 --> 00:02:00,350 and Async/Await throughout the course. 39 00:02:00,350 --> 00:02:05,060 But I'm talking about Promise support in Core Node APIs, 40 00:02:05,060 --> 00:02:08,300 like the file system APIs Node ships with, 41 00:02:08,300 --> 00:02:12,040 those are traditionally callback based. 42 00:02:12,040 --> 00:02:14,340 And therefore, as you'll learn in this course, 43 00:02:14,340 --> 00:02:16,910 they can suffer from certain problems. 44 00:02:16,910 --> 00:02:20,390 And you might wanna use Promises for those 45 00:02:20,390 --> 00:02:22,830 and it turns out that you can. 46 00:02:22,830 --> 00:02:24,040 So let's have a look at all 47 00:02:24,040 --> 00:02:26,343 of that step by step throughout this Module.