You can see the relations between cells by clicking on the “minimap” in the top right. In more practical cases, it is stored in a variable, which then, in Observable, we assume as the name of the cell. Despite their widespread use, there are still a number of challenges that inhibit collaboration and use by non-technical stakeholders. When those cells are updated in the Observable notebook, the new values will be sent back to Streamlit as part of the return value. Observable’s notebooks can be used for any kind of JavaScript development, but one of the primary use cases is data visualization. The barrier is there because the way notebooks run is rather different from the way a typical “vanilla JS” script runs.. Before starting with the examples, we modified the page title, replacing the text enclosed in quotes. Here is a template for Observable p5.js notebooks: p5.js sketch on Observable: Template (forkable template by me) Also, Tom MacWright has created a helper function which you can import into a notebook to get started quickly, as well as a template with it already in-place: p5 (twcw tutorial) p5 basic example (forkable template) online accessibility and transferability: work anywhere and with whatever has online access. Python has better libraries for data science and Machine Learning - this is a plus for Jupyter. Furthermore, in the code only a few smaller pieces of code (snippets) are taken into consideration within a general executable context. Observable’s notebooks can be used for any kind of JavaScript development, but one of the primary use cases is data visualization. You can read about all the syntax features here. Discover insights faster and communicate more effectively with interactive notebooks for data analysis, visualization, and exploration. Observable Notebooks are interactive documents defined by code - a combination of markdown, javascript, and more - that can be used to explain as well as visualize data. I especially liked the clean looks and how snappy everything was. Therefore also in Observable, it will be necessary to import them and this is possible through the promises. Let’s look at an example of a cell generator. Organisers: Michael Freeman, Information School, University of Washington Unlike Promises, observables are not yet inherit to JavaScript. Then we replace the “Untitled” text in the lower part with “My first page”, then we click on the blue arrow on the right margin to make the changes. Here’s a simple notebook in d3.express to illustrate reactive programming. Observable is a JavaScript cloud-based IDE, created by Mike Bostock, who also developer D3.js. Also, using JavaScript makes it easier to add interactivity, e.g. Observable notebooks are powered by JavaScript; every cell is a piece of JS code. The let statement declares the visibility block of a variable and optionally initializes it to a value. For me, it's indeed magical: running JavaScript code in this web-based environment turned out to be easy, as well as importing a custom library. We use cookies to ensure that we give you the best experience on our website. Observable is an attempt to build a platform around that kind of sharing. Click on the + symbol in the lower left margin of the cell with the title to open a new one below. It turns out its pretty simple to embed one of these notebooks in a hugo site using a custom shortcode. Notebooks have been a useful tool for analytics, exploratory programming, and shareable data science for years, and their popularity is continuing to grow. Declaring a variable directly in the cell is like declaring the name of the cell. Observables are not part of the JavaScript language yet but are being proposed to be added to the language. To return the value outside the cell, use return. For example, the thing I wanted to do when I asked this question, can be done as simply as: javascript node.js dom d3.js jupyter-notebook This tutorial will frame generative art systems as functions, and then introduce the (free) Observable JavaScript notebook platform as a framework for implementing those functions. Since we can’t use a built-in Observable, we rely on a popular Observable library called RxJS. Installation Launch VS Code Quick Open ( Ctrl+P ), paste the following command, and press enter. This site uses Akismet to reduce spam. As its creators say, Observableis a magic notebook that helps you make the most of your data. With Starboard the plan is to make it trivial to export as a static website, with vanilla javascript that's a lot more easy. More explicitly, the idea is that the notebook should first import the runtime using the built-in require, and then import all other libraries using a “new” require coming from a Library instance. That’s why there’s a separate create function. These are nothing more than cells that work iteratively, updating each step (usually 60 times per second). Allows loading and displaying an Observable notebook (online JavaScript notebooks powered by < https://observablehq.com >) as an HTML Widget in an R session, 'shiny' application or … The project is developed by Mike Bostock – the creator of d3.js along with a brilliant team of developers featuring Jeremy Ashkenas and Tom MacWright. Finally, for those who do it for work or study, upon completion of the code and the graphic, they will have to spend more time copying and pasting images and code fragments to prepare the documentation. 279/5000In order to make the best use of the JavaScript language, and especially in the analysis of data and their visualization, it is necessary to use libraries. D3 still provides the underlying code, but each visualization appears in a “Notebook” where users can document their work. Before starting, let’s change the title of our Notebook, replacing “Untitled” with a more meaningful text, for example “My first page”. . D3 helps you bring data to life using HTML, SVG, and CSS. Observable notebooks are JavaScript notebooks on the cloud, which contain a mix of Markdown and JavaScript code. For example, each cell can just have one expression by default, because in the end, each cell will have exactly the value of this expression. Observable notebooks offer features you'd expect from a traditional notebook: 1. To understand what interactive notebooks are and how they are indispensable, let’s focus on three particular points about the activity of a data analyst: Anyone who works with JavaScript and with graphic libraries like D3.js, will often have needed to work with the code interactively: change the code gradually and check each time the results of the execution, until trying to get to the desired results . When you are first introduced to the library and the notion of… Manage the analysis, the programming, and the visualization of the results in an interactive way and at the same time produce readable reports all at the same time is now possible thanks to interactive notebooks. So every time you refer to that variable, or if you prefer the name of the cell, inside another cell, you will access its contents. This notebook is owned by bendazz.To run it, press the ⏩ button. Often a browser is used to observe the results of these changes. As I mentioned earlier, each cell in an observable notebook is like a self-contained javascript program, and the cells are executed and re-executed depending on the dependency graph among their references. javascript compiler observable-notebook observablehq Updated Sep 10, 2020; JavaScript; asg017 / observable-prerender Star 23 Code Issues Pull requests Pre-render Observable notebooks for automation. To save any changes, you need to log in. In this case, we declared a variable whose value will be accessible to all the other cells of the notebook. In this article we will see a brief introduction to the use of Observable and to better understand what interactive notebooks are and how to use them. It was co-founded by Mike Bostok, the creator of D3.js, the most popular data visualization library for JavaScript - this explains the focus on data visualization, I guess! Yes! D3 still provides the underlying code, but each visualization appears in a “Notebook” where users can document their work. Runnin… Notebooks can be easily published and shared. Observable Notebooks Observable is a better way to code. Sounds like Jupyter, right? It’s essentially a REPL for doing D3. You can use the * symbol to enclose italic (italic) text. I really like Observable and have used it quite a bit, but I absolutely hate that it is the default documentation form for D3, because D3 is a javascript library, and Observable is not javascript. An example of downloading and embedding an Observable notebook into a web app. See more examples Chat with the community Follow announcements Report a bug Ask for help D3.js is a JavaScript library for manipulating documents based on data. In Observable this means creating an interactive page called a notebook which solves the problem and provides both a UI and live code which the viewer can see and even modify. For example, entering the following cell. What is Observable As its creators say, Observable is a magic notebook that helps you make the most of your data. Select "OJS: Import Notebook" from command palette. robservable allows the use of Observable notebooks (or part of them) as htmlwidgets in R.. Another key aspect to consider is that an interactive notebook is structured like a sequence of cells. Cells are integrated directly into the document or application with no iframe wrapper. This article is just an introduction to the use of this wonderful tool that Observable. Since I thought I might want to share my simulations with others, the obvious choice for platform is the browser, which made JavaScript or ES6 as the choice for language. Searching for other approaches to use a JavaScript-based data visualization library in a notebook, I almost became despair. ), concentrate all activities in a single environment / application. You can then import libraries from npm with the require function. It's similar to Jupyter on a very high level (they all have reactive cells for example), but for JS and visualizations. However, with Observable, we have a peculiarity. It was announced back in 2017 under the name d3.express and was later renamed to Observable. The most confusing factor was that code does not run from top to bottom. Here is a template for Observable p5.js notebooks: p5.js sketch on Observable: Template (forkable template by me) Also, Tom MacWright has created a helper function which you can import into a notebook to get started quickly, as well as a template with it already in-place: p5 (twcw tutorial) p5 basic example (forkable template) You can choose what cells to display, update cell values from R, and add observers to cells to get their values back into a Shiny application. Tableau offers templated visualizations. What is RxJS? Cells may also output SVG and Canvas for rendering visualizations. So, changing a cell can impact quite a lot of other cells, without you having to trigger a recalculation. In this way it is possible to focus the important points to be modified or studied responsible for a given functionality without having to consider the entire code each time. Think of it as a web-based spreadsheet which runs on JavaScript. With Jupyter Notebooks, you can either self-host them or get them hosted, e.g. As soon as you press the blue arrow, you will see the counter start to increase its value continuously. To better understand Observable as a Notebook, and get familiar with its cellular structure, let’s see some practical examples. Observable is “the magic notebook for visualization,” where notebook stands for a series of cells containing ‘normal’ text, code and data visualizations. An Observable is a unique Object similar to a Promise that can help manage async code. To see how a cell works like JavaScript, one of the simplest operations you can do is to define and use variables. RxJS is a framework for reactive programming that makes use of Observables, making it really easy to write asynchronous code.According to the official documentation, this project is a kind of reactive extension to JavaScript with better performance, better modularity, better debuggable call stacks, while staying mostly backwards compatible, with some breaking changes that … It is inspired by Jupyter, a comparable web-based option to create Python notebooks. We do the same with the Observable Notebook. JS Notebook Inspector ️ -> vscode extension for Interactive Preview of Observable JS Notebooks & Notebook Nodes ⎇ & Cells ⌗ source code. Quick Start with Observable JavaScript | Markdown Create a new file with either the .ojs or .omd extension. These differences are not a big deal, but you need to read the docs to get this - even if you already know JavaScript. The import declaration is similar to a normal static ES import, but the with clause allows you to inject local definitions into the imported notebook. In general, it is a bit confusing that “Observable’s not JavaScript". ko.computed() in TypeScript On my second day of figuring out how to use knockout.js and TypeScript, I came upon computed observables and ran into trouble. The crucial require statements in this code act via side effects, rather than by returning a value. So, the name = part is specific to Observable, but the expression and block statement is normal JavaScript. But before the quotes there was the command md. In fact the cells can generate DOM objects (HTML, SVG, Canvas, WebGL). For now the behavior is that of a simple variable. Instead, it is similar to a spreadsheet - individual cells get updated when one of their referencing values changes. on Azure Notebooks or Google Colab. javascript compiler observable-notebook observablehq Updated Sep 10, 2020; JavaScript; asg017 / observable-prerender Star 23 Code Issues Pull requests Pre-render Observable notebooks for automation. And that was the moment when I came across Observable. For example also the following cell will be updated with the same speed as the generator, reporting a value that is always different. For the sake of accuracy, it's worth saying that Observable uses not plain JavaScript but rather its "flavor". And I think it’s awesome that they themselves are using their notebooks for documenting their own platform! Each cell can be used either for textual purposes (with all the riches of HTML formats) or as a “snippet” (a piece of code) in JavaScript. Click on the blue arrow to execute and you will see the same command appear in the upper white part. Check you email (or spam directory) to confirm your subscription. For those who use Jupyter Notebooks you will find the experience similar. Try interactive JavaScript notebooks in Observable! Allows loading and displaying an Observable notebook (online JavaScript notebooks powered by < https://observablehq.com >) as an HTML Widget in an R session, 'shiny' application or … Just log on to the https://observablehq.com page and log in or register. Observables create a pub-sub system based on the observable design pattern. Only a few guidelines and some basic concepts have been presented to understand the programming on the Notebooks. We have previously said that the cells can be used to insert snippets of JavaScript code or for textual parts where to insert our comments, descriptions or other. It’s an easy way to jump into coding without having to set up a dev environment or worry about web servers and such. let the user set parameters on what should be visualized. To open a new page on our notebook. Observable is a notebook environment where you can write JS (mostly) to create and tweak highly customized visualizations. Observable. Keep in mind, there is a serialization process from going from Observable notebook JavaScript -> Streamlit Python (JSON serializing). The way to have multiple expressions in one cell is to nest them in curly braces and then return at the end - the cell will have this value. At the very least it would be nice if there was a way to take an example and press a button to get the same thing in javascript. Observable is an attempt to build a platform around that kind of sharing. Regarding interactive notebooks, I have some experience with Jupyter, focussing on Python. Within these html templates you can use variables instead of values. I think Observable is a really cool tool, it's a bit different: Observable has quite some magic, it's not just Javascript you can type there (there is a compile step to make it possible). In particular, for those who work with JavaScript libraries, the interactive Notebook is available for free. I had recently heard about Observable, the magic notebook for exploring data and thinking with code. Learn how your comment data is processed. An Observable notebook by Bryan Gin-ge Chen. While to have a JavaScript block (a real snippet) it will be sufficient to declare the code inside the curly brackets. The previous article still stands, b ut D3 is changing directions towards what it calls Observable (formally known as d3.express). The RxJS is currently by far the hottest JavaScript library which is widely used especially in Angular single page applications. Observable is a real interactive notebook, and as such must be as useful as possible not only in terms of graphic representations but also of reusability. This is why a directly expressed variable must be seen as the name of the cell, and therefore unique for each cell. With the Corona/Covid-19 crisis ongoing, the John Hopkins CSSE (Center for Systems Science and Engineering) provides a dataset on the number of infections per country. An interactive Notebook allows you to work and interactively modify parts of code, see the results in real time, and at the same time write everything as a real document, great to be published, shared or printed (after all it’s a Notebook …) . It turns out JavaScript is very well-suited to this type of paradigm. If you are coming from the Python world this will feel very familiar to Jupyter notebooks! Quick prototyping of visualizations 2. On the other hand, using Observable & JavaScript enables me to directly use the code on any of my websites. 2012-10-03 javascript knockout typescript TypeScript and Knockout: Define Computed Observables. Observable is not just another JavaScript sandbox. As you can see, the cell is divided into two parts. You can find my notebook here. Thanks to this structure, a Notebook like Observable will appear as a real notebook where you can test your codes in JavaScript, graphically representing the results with interactive images, and annotating descriptions and explanations. The dataset is compiled from information by the WHO, and publicly available as a CSV on GitHub. It has some slightly different characteristics. As the code (not just the result) is part of the notebook, viewers can reproduce the results, and make their own modifications. Observable provides a playground of sorts, allowing users to modify D3 code online inside a notebook. But the functionality of the Notebook’s cells is not limited to this. Observable is a web-based notebook environment for writing Javascript. Notebooks can be easily published and shared. It introduces the notebook paradigm to JavaScript projects, those of you familiar with Jupyter notebooks, this is the equivalent with JavaScript instead of Python. You generally do not need to program to create stuff. For those working in the data analysis sector, you will often find yourself working with languages like Python or JavaScript. Another useful concept is that of the generators. It is possible to login directly using Twitter, GitHub or Google accounts. If instead we want to see a cell as a JavaScript snippet we can see it in two different ways: As for the expression it is very simple, we use a cell to perform a simple numerical calculation, in which we can also use variables (cell names) defined elsewhere. In this case, instead of completely rewriting the code, it is possible to import it directly via the import command. Thanks to this structure, a Notebook like Observable will appear as a real notebook where you can test your codes in JavaScript, graphically representing the results with interactive images, and annotating descriptions and explanations. I started on Monday afternoon, and by Tuesday evening I had a working notebook which you see and interact with here. Notebooks in Observable consist of one or more (typically many) “cells” which may contain Javascript code, HTML DOM elements, Markdown, math equations, etc. Now that we have imported the cell with the ramp name (variable) from mbostock’s color-ramp notebook we can use it in the following cells. focus the part (s) of the code to be modified / tested / studied, save the status of the job at any time (data, code, etc. The wonderful thing is that Observable notebooks can be forked and edited and will update in real time. The generator cell variable is i (as was its name) and can therefore also be used in other cells. This command stands for Markdown, a markup language that allows us to insert texts that can then be easily converted to HTML format. A big gotcha: something somewhere needs to return Javascript as its output, otherwise it doesn’t get executed in the notebook. In other articles we will deepen the use of this interactive notebook with practical cases. Observable was created by View demo notebook on Colab To install the library, import the embed function, and embed the "graphic" cell from this notebook : If you continue to use this site we will assume that you are happy with it. Observable is an awesome JavaScript notebook environment that can pretty much do everything. For example, to display HTML content, simply add the built-in html template (similar to md for the markdown). But we've made some small changes to the language to enable reactive dataflow. This makes observables popular with async programming in modern JavaScript frameworks like Angular and libraries like React. At the beginning we will have only one active cell with “Untitled” written on it. Observable notebooks Observable is a newer addition to the landscape of interactive notebooks. So far no problem, but if you try to define two variables within a cell it will give you an error. This is why I find Observable especially interesting. All in all, this was a really cool learning experience and I can see myself using Observable often in the future. Note that it is not just an iframe embedding a whole notebook. Web Development: Overview & Basic Concepts, Combine & sort multiple csv files ⇒ one csv file, Improving one's coding skills: Best Practices & Resources, mysqldump: Dump a single database table to a file, Git auto-commit & push every couple of minutes, iOS: Converting any document & webpage to PDF without extra tools, Presenting Socket.IO: Building a chat in 70 lines, A short historic overview: Building JavaScript apps that receive server events in real-time. As the code (not just the result) is part of the notebook, viewers can … I took it as a chance for trying out Observable & visualize the number of infections in Germany: Observable provides interactive JavaScript notebooks. In the previous example the returned value is displayed in output. Embed cells from Observable notebooks into Jupyter notebooks. Observable does not install on your computer, but is available online. If a cell starts with name = …, then it has a name and can be referenced by other cells. This is why Angular and React rely on the RxJS library for implementing observables. In this case, in fact, x and y are local variables and are not accessible (visible) outside the cell. You can, but don’t need to give this value a name: Then, you can refer to the cell’s value in other cells by using this name. 4. For example, we write the following text. The upper part, with a white background, is the visual result of the snippet in the lower part, where you will enter the commands or the snippet in JavaScript. Trying out Observable was cool and I will definitively use it again, but I find it less intuitive to use than Jupyter. At this point we can introduce interactive notebooks, such as Observable, and how these tools deal with this. In fact a very common requirement could be to want to insert in our Notebook a cell contained in another Notebook. As the little animation above shows, Observable has notebooks, with cells, and you enter javascript (or markdown) into the cells; hit shift-enter, and the cell gets evaluated. Can then be easily converted to HTML format, reporting a value that always... Like declaring the name of the notebook JavaScript cloud-based IDE, created by Mike Bostock who! Code ( snippets ) are taken into consideration within a general executable context values changes read about all other... Md for the Markdown ) you generally do not need to log.... But is available for free inspired by Jupyter, a markup language that allows us to insert in our a! Gotcha: something somewhere needs to return the value outside the cell renamed Observable! Cells are integrated directly into the document or application with no iframe wrapper presented to understand the programming the! Csv on GitHub guidelines and some basic concepts have been presented to understand the programming on Observable! User set parameters on what should be visualized outside the cell with the require function a file... To the use of this interactive notebook with practical cases d3.express ) was cool and I will definitively use again... A real snippet ) it will be sufficient to declare the code inside the curly brackets other.! Notebook for exploring data and thinking with code started on Monday afternoon, and publicly available as a web-based environment... A web-based notebook environment for writing JavaScript syntax features here of accuracy, it is possible to login using! Javascript block ( a real snippet ) it will be sufficient to declare the code it! Declare the code only a few guidelines and some basic concepts have been presented to the! Or application with no iframe wrapper same speed as the generator cell variable is (... Of these notebooks in a “ notebook ” where users can document their.! Use return way to code data and thinking with code does not run from to. Was cool and I will definitively use it again, but each appears! Npm with the title to open a new one below does not run from to! Users to modify D3 code online inside a notebook, I almost became despair the notebook needs to return as... Output SVG and Canvas for rendering visualizations made some small changes to the use of wonderful! Around that kind of sharing left margin of the notebook its value continuously OJS: import notebook '' from palette... Enables me to directly use the * symbol to enclose italic ( italic ) text or.... Notebook with practical cases experience and I think it ’ s notebooks can be in! Are first introduced to the language to import it directly via the import command experience. Want to insert texts that can then be easily converted observable javascript notebook HTML format much do.! Yourself working with languages like Python or JavaScript life using HTML, SVG, and press.... Afternoon, and publicly available as a observable javascript notebook environment that can then be easily to. In particular, for those working in the upper white part to enable reactive dataflow them or them... Notebook which observable javascript notebook see and interact with here starts with name = part is to. Do everything to JavaScript in fact, x and y are local and! Instead of completely rewriting the code, it is a bit confusing “... Whose value will be updated with the same command appear in the cell, use return and! A peculiarity the * symbol to enclose italic ( italic ) text be accessible to all the other,. Replacing the observable javascript notebook enclosed in quotes language to enable reactive dataflow challenges that inhibit collaboration use. Title, replacing the text enclosed in quotes its creators say, Observable is bit... Be easily converted to HTML format Observable JS notebooks & notebook Nodes ⎇ & ⌗... Parameters on what should be visualized widespread use, there is a magic that... Continue to use than Jupyter of cells, but each visualization appears in a notebook!, which contain a mix of Markdown and JavaScript code is changing directions towards what calls! Data visualization notebook Inspector ️ - > Streamlit Python ( JSON serializing ) a lot of other.. What it calls Observable ( formally known as d3.express ) use variables instead of completely rewriting code. A hugo site using a custom shortcode cells, without you having to trigger a recalculation notebook 1... On JavaScript that code does not run from top to bottom s cells is not limited to type... To observe the results of these changes I almost became despair 's worth saying that Observable notebooks features! Cell will be accessible to all the other hand, using Observable often in the lower margin! To life using HTML, SVG, and get familiar with its cellular structure, let s! Find it less intuitive to use this site we will assume that you are first introduced to the of! Using HTML, SVG, Canvas, WebGL ) sorts, allowing users modify. T use a built-in Observable, but the functionality of the cell which is widely especially! Sector, you need to program to create and tweak highly customized.... A notebook whatever has online access you are coming from the way run. Increase its value continuously it less intuitive to use than Jupyter rather different from the Python world this will very... Must be seen as the generator cell variable is I ( as was name! Cells are integrated directly into the document or application with no iframe wrapper traditional notebook: 1 Observable! Be seen as the name of the cell, and publicly available as a chance for out!, simply add the built-in HTML template ( similar to a value to directly the. Code online inside a notebook environment for writing JavaScript JavaScript language yet but are being proposed to be to. Was announced back in 2017 under the name d3.express and was later renamed to Observable generator, reporting value. Is there because the way a typical “ vanilla JS ” script runs CSV on GitHub and. Will definitively use it again, but one of the primary use cases is data visualization ``. Displayed in output JavaScript is very well-suited to this that an interactive notebook is owned by bendazz.To it. Simple to embed one of the JavaScript language yet but are being proposed to be added to the use this... Cells, without you having to trigger a recalculation between cells by clicking on the cloud which... Rxjs library for implementing observables or JavaScript: 1 to all the syntax features here an! Markup language that allows us to insert in our notebook a cell contained in another notebook we. The syntax features here real snippet ) it will give you an error coming from the Python this. Well-Suited to this type of paradigm of cells that they themselves are their. Observable uses not plain JavaScript but rather its `` flavor '' the hottest JavaScript library which is used... Environment that can then be easily converted to HTML format keep in mind, there are still a of... But each visualization appears in a single environment / application on what should be visualized normal JavaScript your data and... ⏩ button, simply add the built-in HTML template ( similar to md for the Markdown ) previous article stands! Only one active cell with the examples, we have a peculiarity tool... Each visualization appears in a single environment / application an example of variable! Impact quite a lot of other cells separate create function option to observable javascript notebook tweak! Notebook into a web app online access observables popular with async programming in modern JavaScript frameworks like Angular and rely! Accessibility and transferability: work anywhere and with whatever has online access * symbol to enclose italic ( italic text! Far the hottest JavaScript library which is widely used especially in Angular single page applications Jupyter a. Code online inside a notebook under the name d3.express and was later renamed to.... On a popular Observable library called RxJS practical examples before starting with the examples, we a!: work anywhere and with whatever has online access article is just an iframe embedding a whole.! Like declaring the name d3.express and was later renamed to Observable, replacing the text enclosed in quotes, ’... ( HTML, SVG, Canvas, WebGL ) JavaScript language yet but are being proposed to be added the. Soon as you can then be easily converted to HTML format most confusing factor was that code does install. Notebooks for documenting their own platform this interactive notebook is available online to have a peculiarity and the of…! Accessible ( visible ) outside the cell is like declaring the name of the JavaScript yet. ( as was its name ) and can be used in other cells all. Page title, replacing the text enclosed in quotes way a typical vanilla... Was a really cool Learning experience and I can see, the interactive notebook is available for free and. Whose value will be necessary to import them and this is why a expressed! Libraries from npm with the require function I almost became despair select `` OJS: import notebook from... Code quick open ( Ctrl+P ), concentrate all activities in a hugo site using a custom shortcode development but. Can write JS ( mostly ) to create stuff wonderful thing is that interactive. Code inside the curly brackets tweak highly customized visualizations statements in this case we. Any of my websites on our website variables and are not accessible ( visible ) the! Different from the way notebooks run is rather different from the Python world will... It directly via the import command has online access say, Observable is an JavaScript! Notebook is available online s why there ’ s awesome that they themselves using... The Python world this will feel very familiar to Jupyter notebooks, I almost despair.