WEBVTT 1 00:00:01.040 --> 00:00:01.560 M hmmm. 2 00:00:06.879 --> 00:00:09.759 Hello and welcome to another episode of Adventures in dot Net. 3 00:00:09.800 --> 00:00:12.560 I'm Sean Klobo and with me today is your co 4 00:00:12.679 --> 00:00:16.920 host Wylou And happy birthday, Caleb. Since you're not here, 5 00:00:17.000 --> 00:00:20.199 you're not having fun, So it's not gonna make it today. 6 00:00:21.359 --> 00:00:23.640 Dressed up today, he's got to get dressed up. 7 00:00:25.000 --> 00:00:27.239 Well, at least he can go out. You know, he's 8 00:00:27.280 --> 00:00:30.160 got vaccinated and all that kind of stuff. So hopefully 9 00:00:30.399 --> 00:00:32.479 everything getting is good down in New Orleans. 10 00:00:32.799 --> 00:00:35.000 Another thing untill I dressed up, and it also have 11 00:00:35.039 --> 00:00:35.759 to wear a suit. 12 00:00:36.520 --> 00:00:40.719 I no, no, I met his wife really to say, 13 00:00:41.000 --> 00:00:43.280 you know, is he gonna make you know? How how 14 00:00:43.359 --> 00:00:45.840 fancy is a dress up gonna be tonight? So it 15 00:00:45.880 --> 00:00:46.960 depends on all. 16 00:00:46.960 --> 00:00:50.399 The traditions in New Orleans? Maybe yes, anyway, so. 17 00:00:52.280 --> 00:00:57.679 They got weird traditions in New Orleans. So it's strange, 18 00:00:57.479 --> 00:01:01.399 right right, Caleb. Oh yeah, you can't tell me. So 19 00:01:01.520 --> 00:01:03.759 why today on this show? I think we're going to 20 00:01:03.840 --> 00:01:05.560 go back to school. I heard what we're talking about. 21 00:01:05.560 --> 00:01:09.760 Notebook notebooks, you know, I remember those in college or 22 00:01:09.799 --> 00:01:13.120 maybe that. Maybe it's not that kind of notebook today. 23 00:01:13.599 --> 00:01:18.000 Notebook computers now not notebook computers why don't welcome our guest, 24 00:01:18.120 --> 00:01:20.920 Eric Potter. Welcome Erek, Thanks guys, great to be on 25 00:01:20.959 --> 00:01:21.319 the show. 26 00:01:21.599 --> 00:01:22.840 Looking forward talking to you guys. 27 00:01:23.840 --> 00:01:25.680 What kind of notebooks are we talking about today. 28 00:01:25.879 --> 00:01:28.200 Let's start with a little background, because this is one 29 00:01:28.239 --> 00:01:31.640 of those concepts that became big in another part of 30 00:01:31.680 --> 00:01:34.200 the developer world and is starting to make its way 31 00:01:34.239 --> 00:01:36.879 into the dot net world. But there was this idea 32 00:01:37.239 --> 00:01:42.079 that really started in the Python space with a tool 33 00:01:42.159 --> 00:01:46.079 called Jupiter Notebook notebooks, and the idea is that you 34 00:01:46.120 --> 00:01:51.840 can have an interesting mix of code and text, so 35 00:01:51.920 --> 00:01:55.120 you can have a document this this Jupiter Notebook document 36 00:01:55.519 --> 00:01:59.040 where you can alternate back and forth between having text 37 00:01:59.439 --> 00:02:04.799 in marked and your Python code. And the code is 38 00:02:04.799 --> 00:02:07.599 actually organized into these little cells, and each cell is 39 00:02:08.120 --> 00:02:11.840 defined independently, so you could just have like eight lines 40 00:02:11.840 --> 00:02:13.520 of code and you could run those eight lines of 41 00:02:13.520 --> 00:02:16.800 code independently. And in the Python space, this kind of 42 00:02:16.800 --> 00:02:20.960 became big in the data community because you might have 43 00:02:20.960 --> 00:02:23.400 a few lines of code where you pull in a 44 00:02:23.400 --> 00:02:26.439 bunch of data from a CSV and then you take 45 00:02:26.439 --> 00:02:28.800 that data and run it through a charting library, or 46 00:02:28.840 --> 00:02:30.719 maybe just want to blow it out and filter it 47 00:02:30.719 --> 00:02:33.319 in a table, or maybe you want to do some 48 00:02:33.360 --> 00:02:36.000 aggregations on it, but as you're doing it, you can 49 00:02:36.039 --> 00:02:40.360 be documenting what you're doing, and then that documentation either 50 00:02:40.400 --> 00:02:45.120 then lives for you or lives on for someone else 51 00:02:45.319 --> 00:02:48.159 to take over this notebook in the future. But either way, 52 00:02:48.240 --> 00:02:51.520 we now have a way to have a much more 53 00:02:51.560 --> 00:02:56.520 interactive experience than a historical Python programming experience where you 54 00:02:56.759 --> 00:02:59.120 would write the Python file and then just execute it. 55 00:02:59.400 --> 00:03:03.199 So this concept is making its way into the dot 56 00:03:03.240 --> 00:03:07.439 net space with these dot net notebooks. And so there's 57 00:03:07.479 --> 00:03:09.919 a couple of terms here. There is the Visual Studio 58 00:03:09.919 --> 00:03:13.400 Code notebooks, which that is what allows you to have 59 00:03:13.439 --> 00:03:17.000 these notebooks in visual studio code, and then there are 60 00:03:17.039 --> 00:03:20.159 a couple of different variations on that. So there you 61 00:03:20.159 --> 00:03:24.080 can have the c sharp sharp and JavaScript notebooks. There's 62 00:03:24.120 --> 00:03:27.000 actually another kind of notebook for SQL, and so you 63 00:03:27.000 --> 00:03:31.039 can have these different interactive environments right in Visual studio code. 64 00:03:31.360 --> 00:03:34.479 It used to be, I think in Python you kind 65 00:03:34.479 --> 00:03:38.240 of had to have a larger tool called Anaconda installed 66 00:03:38.400 --> 00:03:41.159 to be able to create Python notebooks or Jupidter notebooks, 67 00:03:41.360 --> 00:03:43.520 and there had been an earlier version where you could 68 00:03:43.719 --> 00:03:46.879 run sea sharp in an Anaconda notebook but now they've 69 00:03:46.879 --> 00:03:48.759 got it, so you can do it all in visual 70 00:03:48.800 --> 00:03:52.599 Studio code with the visual Studio code extension for dot 71 00:03:52.639 --> 00:03:54.479 net notebooks. 72 00:03:53.520 --> 00:03:55.120 So go ahead. 73 00:03:55.159 --> 00:03:59.319 Why so it actually runs the code it so it's 74 00:03:59.479 --> 00:04:02.560 kind of a white to I guess, start notepadding, stop 75 00:04:02.599 --> 00:04:05.960 documenting something, but by putting code that actually runs. 76 00:04:06.120 --> 00:04:06.360 Yeah. 77 00:04:06.400 --> 00:04:11.599 So let's say that you are exploring or documenting something 78 00:04:11.800 --> 00:04:16.120 in a new Newgate package, so maybe something like system 79 00:04:16.240 --> 00:04:18.680 dot text dot Jason, and you want to see how 80 00:04:18.720 --> 00:04:24.199 that serializes your objects. First of all, there is a 81 00:04:24.279 --> 00:04:29.360 special syntax for pulling new GET packages in, so you know, 82 00:04:29.360 --> 00:04:32.319 with one line of code in your notebook you can 83 00:04:32.319 --> 00:04:34.360 pull down a new GET package and start working with it. 84 00:04:34.639 --> 00:04:37.519 And so then you could define your object and then 85 00:04:37.600 --> 00:04:40.480 you could serialize and de serialize it right in the notebook, 86 00:04:40.519 --> 00:04:42.439 and you could see the string output that you're getting 87 00:04:42.920 --> 00:04:45.879 when you serialize it. And if you want to play 88 00:04:45.879 --> 00:04:51.680 around with the different serialization options, right, you just have 89 00:04:51.720 --> 00:04:54.000 a blocker code that's like setting those options differently. You 90 00:04:54.040 --> 00:04:55.720 can run it like, okay, I want to see what 91 00:04:55.759 --> 00:04:57.920 happens when I serialize it with this option on. Okay, 92 00:04:57.959 --> 00:04:59.279 now I want to see what I'm going to change 93 00:04:59.279 --> 00:05:00.959 the option. I want see how serializes with this set 94 00:05:00.959 --> 00:05:04.160 of options. And so it's very interactive in terms of, 95 00:05:04.519 --> 00:05:07.000 you know, having chunks of code that that you can run. 96 00:05:07.439 --> 00:05:10.839 Most developers that I know, especially C sharp developers, have 97 00:05:10.959 --> 00:05:14.040 some folder somewhere on their hard drive that has like 98 00:05:14.639 --> 00:05:18.959 console application one, console application, two, console application seventy five, 99 00:05:19.240 --> 00:05:22.000 you know, right, because there's always those things where it's like, oh, 100 00:05:22.000 --> 00:05:24.079 I just I need to be able to drop in 101 00:05:24.160 --> 00:05:26.120 some C Sharp cod and see what this does. Well, 102 00:05:26.120 --> 00:05:29.399 the nice thing about these notebooks it's like, oh, I 103 00:05:29.439 --> 00:05:34.360 could just drop in here and see what happens in 104 00:05:34.480 --> 00:05:37.160 visual code. Visual studio code obviously opens really fast, so 105 00:05:37.160 --> 00:05:38.680 it's a really nice way to quickly get in there. 106 00:05:39.560 --> 00:05:42.120 But then the nice thing about it is that these 107 00:05:42.360 --> 00:05:45.800 notebook files have an extension of ip y and B, 108 00:05:46.240 --> 00:05:50.959 which is a Python holder. So Python holdover from Interactive 109 00:05:51.160 --> 00:05:54.879 Python Notebook. So I P y and B and that's 110 00:05:54.920 --> 00:05:56.680 still the extension even if you're using C sharp. 111 00:05:56.800 --> 00:06:00.319 So any language would have still be the same extension as. 112 00:06:00.199 --> 00:06:02.519 Far as I know, and C sharp is the one 113 00:06:02.519 --> 00:06:05.360 that I've done the most with. I mean, that's just 114 00:06:05.399 --> 00:06:08.160 the language I work in the most I've seen really 115 00:06:08.199 --> 00:06:11.240 interesting demos with f sharp. I know it supports JavaScript 116 00:06:11.319 --> 00:06:14.279 as well, and those are all the same extension. But 117 00:06:14.399 --> 00:06:17.959 I could you know, take that ip y n B 118 00:06:18.120 --> 00:06:20.920 file which is just a Jason file and you know, 119 00:06:21.000 --> 00:06:22.839 check it in, or I could email to my teammates 120 00:06:22.839 --> 00:06:25.079 and so maybe I want to document like, hey, here's 121 00:06:25.079 --> 00:06:28.639 how we're going to use the serialization technique on our project. 122 00:06:29.360 --> 00:06:31.279 And instead of just like writing up an email and 123 00:06:31.279 --> 00:06:33.800 sending it to them like hey, here's this, here's this 124 00:06:33.839 --> 00:06:36.759 interactive bit. You try it. See if you know, see 125 00:06:36.759 --> 00:06:38.120 if you agree with my decision. 126 00:06:38.879 --> 00:06:40.839 So can you put in like different libraries and things 127 00:06:40.879 --> 00:06:43.199 like that or is it just that is the context 128 00:06:43.279 --> 00:06:45.680 just whatever your coding on local variables? 129 00:06:45.920 --> 00:06:50.360 No, So you can reference assemblies that are on your machine. 130 00:06:50.399 --> 00:06:53.920 So if you have a you know, a class library 131 00:06:53.959 --> 00:06:56.759 that you're using in whatever project you're on, you can 132 00:06:56.800 --> 00:06:59.319 reference that right from your hard drive. Or like I said, 133 00:06:59.480 --> 00:07:01.199 if there is a new get package and you can 134 00:07:01.199 --> 00:07:04.000 pull that down to okay, yeah cool. 135 00:07:04.399 --> 00:07:07.920 So is it like a like a wiki with executable 136 00:07:07.959 --> 00:07:08.600 stuff in it. 137 00:07:09.000 --> 00:07:11.079 That's a really interesting way to think about it, because, 138 00:07:11.240 --> 00:07:14.399 like a lot of wikis, it does support markdown, right, 139 00:07:14.439 --> 00:07:17.040 so I could, I could have tables, I could, I 140 00:07:17.040 --> 00:07:19.759 can actually have images as if I want, you know, 141 00:07:19.879 --> 00:07:23.639 because markdown has syntax to pull in images. So yeah, 142 00:07:24.639 --> 00:07:26.600 that's a really interesting way to think about it because 143 00:07:26.600 --> 00:07:28.600 it is kind of like that it's it's a wiki, 144 00:07:28.800 --> 00:07:32.199 but you can actually execute the code right there. 145 00:07:33.040 --> 00:07:36.720 I didn't like stack overflow. I think it has something 146 00:07:36.720 --> 00:07:39.360 similar to that in which when you pay some code 147 00:07:39.360 --> 00:07:42.399 in you have the option to run it. If it's 148 00:07:42.439 --> 00:07:44.920 a certain language, then it actually shows you the output 149 00:07:44.920 --> 00:07:46.639 as well, if if you quote a block of tech 150 00:07:46.680 --> 00:07:49.839 block of code. So yeah, I can see it myself 151 00:07:49.920 --> 00:07:52.879 using it as well, because like for me, like now 152 00:07:52.879 --> 00:07:55.439 you're going on about developers using the console app on 153 00:07:55.680 --> 00:07:59.800 two free, and I'm really big on documenting literally everything 154 00:07:59.800 --> 00:08:02.839 I like on a program. Maybe like twenty five percent 155 00:08:02.839 --> 00:08:05.879 of my time is this going back in every by 156 00:08:06.000 --> 00:08:09.000 error message or or whatever. Or even if I solve 157 00:08:09.040 --> 00:08:11.720 a problem certain way, I'll just I'll just we've helped 158 00:08:11.800 --> 00:08:14.480 one note and just document it, you know, just s 159 00:08:14.480 --> 00:08:19.079 beeacause I I've got got a bad memory, and like 160 00:08:19.160 --> 00:08:21.560 the so many times going oh I fixed this problem before, 161 00:08:21.639 --> 00:08:24.560 and it's like where do I look kind of thing. So, 162 00:08:24.560 --> 00:08:26.560 so yeah, I can really see myself using this and 163 00:08:26.839 --> 00:08:29.040 then just kind of putting in code that would just 164 00:08:29.120 --> 00:08:31.439 run for me, you know, instead of just putting in 165 00:08:31.439 --> 00:08:34.440 a block of code that may not may not run. 166 00:08:34.559 --> 00:08:37.559 So yeah, so how do you get started? You know, 167 00:08:37.559 --> 00:08:39.320 what's it? What's it take to get started? And what's 168 00:08:39.320 --> 00:08:41.519 a good place to start at for somebody that hasn't 169 00:08:41.519 --> 00:08:42.519 done a notebook before? 170 00:08:43.000 --> 00:08:45.679 All right, So in Visual Studio Code, if you go 171 00:08:45.759 --> 00:08:50.519 to the extension library, then there is an extension you 172 00:08:50.519 --> 00:08:54.720 can search for called dot Net Interactive Notebooks, and it 173 00:08:54.799 --> 00:09:01.240 is still listed as a preview by It's really working 174 00:09:01.279 --> 00:09:03.519 pretty well. I've had it installed for a couple of 175 00:09:03.559 --> 00:09:09.840 months now. But if you install the preview then you 176 00:09:09.879 --> 00:09:13.039 can start creating these notebooks. There's actually some new commands 177 00:09:13.039 --> 00:09:16.080 that they have in the Visual studio Code command bar. 178 00:09:16.960 --> 00:09:21.279 Looking at the documentation here, you do obviously have to 179 00:09:21.279 --> 00:09:23.399 have Visual studio Code installed, and you have to have 180 00:09:23.759 --> 00:09:27.919 dot Net five installed. I guess I was at this 181 00:09:27.960 --> 00:09:30.039 point it's kind of a safe assumption that all developers 182 00:09:30.080 --> 00:09:34.000 have Visual studio Code installed. That's becoming very ubiquitous. You 183 00:09:34.039 --> 00:09:36.600 do need the five SDK installed as well, apparently. 184 00:09:37.000 --> 00:09:39.759 So what about if you said you could just copy 185 00:09:39.840 --> 00:09:43.039 these new get files to the developers, Like, if you've 186 00:09:43.039 --> 00:09:45.519 got new get packages, do the nu get packages kind 187 00:09:45.559 --> 00:09:48.200 of come or at least the references come with the 188 00:09:48.240 --> 00:09:51.720 file or it's just an assumption that would have it installed. 189 00:09:52.600 --> 00:09:58.240 So there is actually a special syntax for pulling down 190 00:09:58.279 --> 00:10:01.200 new get packages. So, again sticking with the example of 191 00:10:01.240 --> 00:10:05.639 system dot text dot json, if I have near the 192 00:10:05.679 --> 00:10:12.320 top of my notebook file pound are quote new gut 193 00:10:12.360 --> 00:10:16.159 colon system dot text dot json quote right, so that 194 00:10:16.240 --> 00:10:20.519 line of code, when I execute that line in the notebook, 195 00:10:20.679 --> 00:10:24.919 then it will install that Newgate package. And so what 196 00:10:24.960 --> 00:10:27.279 I could do, you know, in the case you're talking 197 00:10:27.320 --> 00:10:32.320 about where I if I email you my notebook, you 198 00:10:32.360 --> 00:10:34.919 would have to execute that block. But then once you 199 00:10:34.919 --> 00:10:36.399 had done that, then you would have the new get 200 00:10:36.480 --> 00:10:40.759 packages downloaded and installed. Now, obviously you can use that 201 00:10:40.799 --> 00:10:44.159 pound our syntax to reference assemblies that are on your 202 00:10:44.200 --> 00:10:47.279 hard drive and so like if if I was just 203 00:10:47.320 --> 00:10:50.960 like referencing something that the path was like c colon 204 00:10:51.039 --> 00:10:53.480 users e Potter, right, then that wouldn't be on your machine. 205 00:10:54.240 --> 00:10:56.279 But you know, if I was actually using the Newgate 206 00:10:56.320 --> 00:10:59.200 reference then then you could download it yourself. 207 00:10:59.639 --> 00:11:03.279 So what use cases do you see for this, Like, 208 00:11:03.559 --> 00:11:05.279 I mean, I think identify that for me, it would 209 00:11:05.279 --> 00:11:08.039 be mainly for documentary in my own stuff, But do 210 00:11:08.120 --> 00:11:10.159 you see any other use cases that might be useful? 211 00:11:10.600 --> 00:11:15.360 So, yeah, documentation, I think is a big one. I 212 00:11:15.399 --> 00:11:19.879 think the one that the Python community is really embraced 213 00:11:19.960 --> 00:11:24.080 is this idea of data exploration. And you know, I'll 214 00:11:24.080 --> 00:11:27.120 include code exploration in that too, But a lot of 215 00:11:27.120 --> 00:11:31.360 times we're working with a large data set and you know, 216 00:11:31.399 --> 00:11:35.159 we could query it in you know, simple server management studio, 217 00:11:35.759 --> 00:11:37.960 but I don't know, maybe maybe it comes from a 218 00:11:37.960 --> 00:11:40.720 CSV or you know, some other data source, And what 219 00:11:40.759 --> 00:11:44.919 we want is the ability to look at some data, 220 00:11:45.639 --> 00:11:47.639 do some kind of aggregation on it beyond what we 221 00:11:47.639 --> 00:11:50.919 could just do in SQL, maybe generate some charts or 222 00:11:51.000 --> 00:11:55.039 generate some other kind of visualization, and I could do 223 00:11:55.080 --> 00:11:59.200 that really quickly. One of the things that Microsoft kind 224 00:11:59.200 --> 00:12:03.240 of touts with their Notebook extension is that it's got 225 00:12:03.279 --> 00:12:07.919 good support for a library called xplot dot plotly, so 226 00:12:08.000 --> 00:12:11.120 what you could do is you could have some data 227 00:12:11.159 --> 00:12:13.639 source that you're going to pull in and then render 228 00:12:13.720 --> 00:12:20.120 a visual using xplot and all that right in the notebook. Now, 229 00:12:20.159 --> 00:12:22.679 the nice thing is that because it's interactive, you know, 230 00:12:22.720 --> 00:12:25.519 you could be maybe tweaking your filters and then tweaking 231 00:12:25.559 --> 00:12:28.080 your visualization or tweaking your data source, and you can 232 00:12:28.120 --> 00:12:30.039 kind of it it. You have this really fast feedback 233 00:12:30.080 --> 00:12:35.240 loop of you know, being able to really tweak the 234 00:12:35.720 --> 00:12:37.759 experience that you want and tweak the visual you want 235 00:12:37.759 --> 00:12:42.840 really easily. So yeah, there's that whole exploration. So I'd 236 00:12:42.879 --> 00:12:46.159 say that's probably the second big use case. The third one, 237 00:12:46.200 --> 00:12:49.440 and maybe this is a little more specific to me, 238 00:12:50.039 --> 00:12:55.000 is actually with teaching. So I spend a non trivial 239 00:12:55.000 --> 00:12:58.480 amount of time mentoring developers at my employer. I work 240 00:12:58.559 --> 00:13:02.240 for a company called a Pair of Software, and we're 241 00:13:02.279 --> 00:13:07.200 really big on teaching and training and empowering our younger developers, 242 00:13:07.919 --> 00:13:12.799 and so I can see myself documenting some like fundamental 243 00:13:12.799 --> 00:13:17.759 concepts and handing this over to them. I also sometimes 244 00:13:17.799 --> 00:13:22.960 teach as an adjunct at a local university, and having 245 00:13:22.960 --> 00:13:26.440 the ability to have this interactive teaching tool I think 246 00:13:26.519 --> 00:13:29.759 is really powerful. One of the challenges that I've always 247 00:13:29.759 --> 00:13:32.440 had in the past, no matter where I'm teaching, is 248 00:13:32.440 --> 00:13:35.960 that which mechanism do I want to use to teach 249 00:13:36.600 --> 00:13:40.879 about code. So I could just have C sharp code 250 00:13:41.000 --> 00:13:44.799 with comments that explain the concepts as we're trying to 251 00:13:44.879 --> 00:13:48.519 go through. But that has some limitations. There's there's no graphics. 252 00:13:48.840 --> 00:13:51.879 I can't like have an image that's that shows up 253 00:13:51.879 --> 00:13:55.120 in comments in a C sharp file. You know, a 254 00:13:55.159 --> 00:13:59.639 lot of teaching historically has done with PowerPoint, which in 255 00:13:59.679 --> 00:14:01.879 power you have the opposite problem where you can have 256 00:14:01.879 --> 00:14:04.840 all these really interesting visualizations, but then the code is 257 00:14:04.960 --> 00:14:08.559 maybe just a screenshot and so that it's not interactive 258 00:14:08.600 --> 00:14:12.360 at all. I think having notebooks becomes this really powerful 259 00:14:12.399 --> 00:14:16.440 teaching tool where I could say, okay, here's the concept. 260 00:14:16.559 --> 00:14:20.320 Maybe I've got some graphic that represents what conceptually is 261 00:14:20.320 --> 00:14:22.840 trying to happen. But then I can have the code 262 00:14:22.840 --> 00:14:24.559 and they can run it from themselves and they can 263 00:14:24.639 --> 00:14:26.559 change it and they can explore and see what the 264 00:14:26.600 --> 00:14:29.000 code does. I think the other thing that could be 265 00:14:29.080 --> 00:14:33.200 really interesting is that you could almost have like interactive 266 00:14:33.240 --> 00:14:35.279 problems as you go, so you're explaining a concepts and 267 00:14:35.320 --> 00:14:38.120 be like, okay, now you write the ten lines of 268 00:14:38.200 --> 00:14:42.080 code that generate this output. And so you could learn 269 00:14:42.080 --> 00:14:46.600 in a much more interactive way without having to subject 270 00:14:46.600 --> 00:14:49.799 yourself to the limitations of only code or only PowerPoint 271 00:14:49.840 --> 00:14:50.200 or whatever. 272 00:14:50.480 --> 00:14:53.399 Yeah, that's really cool. So can you embed it into 273 00:14:53.440 --> 00:14:55.759 a like a web page? You think that's one. I'm thinking, 274 00:14:55.799 --> 00:14:59.320 like the professor puts an assignment up and yeah, you 275 00:14:59.399 --> 00:15:02.279 literally you know, it has the description and mockdown and 276 00:15:02.399 --> 00:15:04.720 shots and all that stuff, and then they're just still 277 00:15:04.759 --> 00:15:07.919 in the code bit. 278 00:15:08.600 --> 00:15:12.159 So I think from the things that I've read, and 279 00:15:12.279 --> 00:15:14.720 I don't have any special knowledge here, but I think 280 00:15:15.000 --> 00:15:16.679 that it's something they would like to get to. But 281 00:15:16.720 --> 00:15:19.799 you do have a challenge there in that if it's 282 00:15:19.879 --> 00:15:22.600 running on a web page somewhere, you have to run 283 00:15:22.600 --> 00:15:23.639 the C sharp compiler. 284 00:15:24.279 --> 00:15:26.440 Yeah, so you'd have to back in. Well maybe you 285 00:15:26.440 --> 00:15:28.799 could use assembly web assembly something. 286 00:15:29.120 --> 00:15:32.919 Yeah, maybe there's a really interesting potential there that, like 287 00:15:33.080 --> 00:15:38.799 could you run roslin in in Blazer. I don't know 288 00:15:38.879 --> 00:15:40.080 if that's the thing that you can do or not. 289 00:15:40.759 --> 00:15:44.360 Maybe it is. I know that one of the things 290 00:15:44.399 --> 00:15:47.519 I think they were doing with the try dot net website. 291 00:15:48.159 --> 00:15:50.919 I think maybe with that they were actually shipping the 292 00:15:51.000 --> 00:15:53.279 code back to some server for it to be compiled, 293 00:15:53.320 --> 00:15:55.240 and they would send the assembly forward. 294 00:15:55.480 --> 00:15:56.759 They switched that over to Blazer. 295 00:15:56.919 --> 00:15:59.879 So yeah, okay, so maybe and maybe that's the thing, 296 00:15:59.879 --> 00:16:02.279 is that these notebooks will eventually be able to run 297 00:16:02.360 --> 00:16:06.000 right in Blazer. The best solution I've seen right now 298 00:16:06.519 --> 00:16:11.039 is that there is a website again from the Python 299 00:16:11.039 --> 00:16:16.000 community called Binder, and you can post notebooks on Binder. 300 00:16:16.639 --> 00:16:20.279 And Binder does support the dot net runtime, so you 301 00:16:20.320 --> 00:16:22.960 can run your c sharp notebooks on Binder if that's 302 00:16:23.000 --> 00:16:23.879 how you want to share them. 303 00:16:23.919 --> 00:16:26.159 But you said it also supports jss R. 304 00:16:26.600 --> 00:16:26.799 Yeah. 305 00:16:26.840 --> 00:16:31.000 Yeah, yeah, maybe that part of it you could. But 306 00:16:31.000 --> 00:16:33.080 but you said it's also just in previews, so maybe 307 00:16:33.120 --> 00:16:37.519 it is just a feature that that haven't got through yet. Yeah, 308 00:16:38.360 --> 00:16:42.919 is this a Microsoft created thing or yeah. 309 00:16:42.480 --> 00:16:46.080 The extension I was going to double check. Yeah, the 310 00:16:46.080 --> 00:16:49.240 author on the extension is Microsoft COO. 311 00:16:49.799 --> 00:16:53.600 So is it is it limited to like console type applications. 312 00:16:53.799 --> 00:16:56.840 You talked about xblot, but that's not really like a 313 00:16:56.840 --> 00:16:59.279 gooey type of thing, so where you can build forms 314 00:16:59.360 --> 00:17:01.600 or do some sort of interactivity. 315 00:17:01.960 --> 00:17:04.079 So one of the things they have built in is 316 00:17:04.839 --> 00:17:08.799 a display method, So if I have an object, I 317 00:17:08.839 --> 00:17:11.440 can display that object and it will render all of 318 00:17:11.480 --> 00:17:15.160 the properties and their values in a table. So there 319 00:17:15.240 --> 00:17:18.119 is a little bit more that's graphical than just you know, 320 00:17:18.240 --> 00:17:21.519 standard console output. I don't. It's just not something i've 321 00:17:21.559 --> 00:17:24.000 run into. I know that there's different HTML output options 322 00:17:24.000 --> 00:17:28.079 you can do. I can't speak authoritatively to those, and 323 00:17:28.160 --> 00:17:32.240 I did just see on Twitter very recently someone from 324 00:17:32.279 --> 00:17:35.680 the community added a plug in that could render Razor, 325 00:17:36.079 --> 00:17:38.839 and so then you could have a notebook that could 326 00:17:38.880 --> 00:17:42.799 render all kinds of different Web outputs with anything you 327 00:17:42.920 --> 00:17:45.119 do with Razor, you could do in the notebook. Again, 328 00:17:45.319 --> 00:17:47.480 that's on my list of things to investigate. I haven't 329 00:17:47.480 --> 00:17:49.440 looked at at what they've done yet, and I don't 330 00:17:49.440 --> 00:17:51.720 know how stable that package is, but I am very 331 00:17:51.720 --> 00:17:52.359 excited about it. 332 00:17:52.599 --> 00:17:55.559 So it displays the output of the code you run. 333 00:17:55.799 --> 00:17:58.480 So I'm guessing that then it assumes that the code 334 00:17:58.480 --> 00:18:01.880 that you run has to have a determinant output. Like 335 00:18:01.960 --> 00:18:04.480 you couldn't just put like a mass dot random path 336 00:18:04.480 --> 00:18:07.160 in there, because it would just be a line in 337 00:18:07.200 --> 00:18:09.559 that that would just give you a completely different output 338 00:18:09.599 --> 00:18:11.680 every time we run it. What would happened then, I. 339 00:18:11.680 --> 00:18:15.359 Mean, you could certainly have random outputs, right is, if 340 00:18:15.400 --> 00:18:18.079 you had a random number generator and you wanted to 341 00:18:18.559 --> 00:18:22.519 run the code block which they call these blocks cells, right, 342 00:18:22.599 --> 00:18:24.440 so you can just execute the cell over and over 343 00:18:24.480 --> 00:18:27.839 again like any programming thing. You wouldn't want your cell 344 00:18:27.960 --> 00:18:30.359 to get stuck in some kind of infinite loop. But 345 00:18:31.200 --> 00:18:35.599 assuming assuming that your cell does run the completion in 346 00:18:36.519 --> 00:18:38.480 you know, the same amount of time, then yeah, I 347 00:18:38.480 --> 00:18:39.480 would display the output. 348 00:18:40.000 --> 00:18:42.839 So does it run at it every time you open 349 00:18:43.119 --> 00:18:44.759 the file or does it run it once and then 350 00:18:44.880 --> 00:18:45.839 store the output? 351 00:18:46.359 --> 00:18:52.000 So each cell can be executed individually. So there's actually 352 00:18:52.720 --> 00:18:55.240 a little graphical play button. So let's say I've got 353 00:18:55.680 --> 00:18:57.759 three lines of code in one cell and I hit 354 00:18:57.759 --> 00:19:00.559 the play button, execute it. Or there's a keyboard truck two. 355 00:19:00.880 --> 00:19:03.000 But I could then have my markdown that explained what 356 00:19:03.079 --> 00:19:06.559 just happened. I have another cell and I could execute 357 00:19:06.559 --> 00:19:10.599 that one. Now all of these cells execute in the 358 00:19:10.640 --> 00:19:15.400 same scope. So maybe I want to define a class 359 00:19:15.839 --> 00:19:19.759 in one cell and then you have some explanation and 360 00:19:19.799 --> 00:19:24.200 then instantiate an object of that class in a cell 361 00:19:24.240 --> 00:19:27.079 that's down lower. Then you could totally do that. Like 362 00:19:27.119 --> 00:19:30.680 I said, I was teaching a local university and I 363 00:19:30.720 --> 00:19:35.640 was trying to explain the concept of inheritance and overwriting, right, 364 00:19:35.680 --> 00:19:37.960 and so we had this notebook where there was a 365 00:19:38.000 --> 00:19:41.039 class at the top that had some virtual methods, and 366 00:19:41.079 --> 00:19:44.640 then there were cells down below that had various iterations 367 00:19:44.720 --> 00:19:47.039 or you know, various versions of how you override methods 368 00:19:47.079 --> 00:19:49.799 and what that looks like down below. So I think 369 00:19:49.839 --> 00:19:52.440 there is also an option to just like execute everything 370 00:19:52.480 --> 00:19:54.359 in the file if you just want to jump right. 371 00:19:54.279 --> 00:19:57.240 To the end. Yeah, I can see my folf. Do 372 00:19:57.240 --> 00:19:59.799 you think it quite a lot for presentations and things 373 00:19:59.799 --> 00:20:02.559 of that. I run a local meet up as well, 374 00:20:02.680 --> 00:20:05.640 so it it'd be a really good way to illustrate 375 00:20:05.720 --> 00:20:08.240 the code that you're trying to run, just by running 376 00:20:08.279 --> 00:20:10.240 it one bit at a time and then putting some 377 00:20:10.400 --> 00:20:13.359 nice mock down, you know, describe what you're doing. 378 00:20:13.680 --> 00:20:13.880 Yeah. 379 00:20:13.920 --> 00:20:17.519 I imagine that going forward, that when I'm you know, 380 00:20:17.559 --> 00:20:20.599 in a user group scenario or just explaining something to 381 00:20:21.519 --> 00:20:23.799 my teammates anytime when in the past I would have 382 00:20:23.799 --> 00:20:26.599 thought like, oh, I just dropped this code into PowerPoint, Like, 383 00:20:26.680 --> 00:20:28.720 I think probably going forward, I'm just going to use 384 00:20:28.759 --> 00:20:29.480 these notebooks. 385 00:20:30.000 --> 00:20:33.440 Yeah. So I've typically used like link pad for making 386 00:20:33.440 --> 00:20:37.119 my little one off test applications and things like that. 387 00:20:37.160 --> 00:20:40.680 This sounds like a better way to be more organized 388 00:20:40.759 --> 00:20:43.960 with multiple you know, test apps and things like that, 389 00:20:44.440 --> 00:20:45.559 you know, with documentation. 390 00:20:46.200 --> 00:20:49.279 So that's a really interesting comparison, right because link pad 391 00:20:49.359 --> 00:20:51.960 is a wonderful tool, and I don't want say anything 392 00:20:52.000 --> 00:20:53.720 bad about it, but it has a little bit of 393 00:20:53.759 --> 00:20:57.079 a different goal because you can't have markdown right, So 394 00:20:57.119 --> 00:20:59.839 it's a great link Pad is a great way to say, 395 00:21:00.079 --> 00:21:02.400 here's these thirty lines of code or these fifteen lines 396 00:21:02.440 --> 00:21:05.720 of code, and I just want to execute that. But 397 00:21:05.920 --> 00:21:08.720 can I hit the data base, the night pad stuff, 398 00:21:08.920 --> 00:21:16.799 link pad, notebook? Yeah, because again you could pull in 399 00:21:15.920 --> 00:21:18.880 a new get packaged, right, so there's no reason why 400 00:21:18.920 --> 00:21:22.640 you couldn't use enterity framework or in one of the 401 00:21:22.640 --> 00:21:26.160