Dart presentation

Editor's Notes

• #5: This is the book I used to prepare this presentation. It’s written by Kethy Walrath and Set Ladd (It’s a free copy – at least I think) Kathy is a technical writer who's worked on docs for Chrome and other developer APIs at Google since 2006. Before that, she worked at Sun, NeXT, and HP. Back when the web was young, she wrote the first doc to help developers write Java applets. She also co-created The Java Tutorial and maintained it for a very long time. Seth is a web engineer and is currently a Chrome Developer Advocate, helping developers of all sizes launch awesome modern web apps. He produced Aloha on Rails, the Hawaii Ruby on Rails and Web Development Conference, and New Game, the conference for HTML5 game developers. Seth has also authored Dart Up and Running and Expert Spring MVC.
• #6: GOTO conferences are conferences that take place all around the world and to discuss about software development Class based, different than JavaScript that is prototype based Reified generics – types can be defined later Optional type doesn’t relay on language to get tasks done Operator overriding -> class + class – Not possible with JavaScript
• #7: It’s not only a language, but it also has standard libraries that supports the language Tools: editor that gives auto completion VM that helps startup web apps more rapidly If the browser doesn’t the Dart VM, your code can be compiled to JavaScript easily and still runs faster than usual JavaScript Engines
• #9: - All developers platforms should be developing for the web Complex means: more features, more functionalities, more HTML benefícios, all integrated to your app, so your app can use better all features of file systems, webGL, CSS3 More apps developed for the modern browsers and mobile browsers
• #10: Architecting web apps is quite challenging, specially when they’re complex and has to be large-scalable, so Dart comes to make it easier to bring those kind of web apps to reality Make the web faster, “Our goal is to make applications run at least 2 times faster, as it’s possible with JS” as John McCartin said, he’s a Google Engineer that works on VM
• #11: Platform independence: it can run in any web browser installed in any OS without difficulties
• #13: Conventional type checker is a lobotomized theorem proven: Trying proving a program obeying type system If it can’t construct a proof – program is considered invalid “Guilty until proven innocent” Snapshots: Currently, web browsers parse web app’ source code before running it. Dart code can be snapshotted to speedup startup around 10 times faster Native Dart library to access and manipulate HTML DOM – interface for updating the content, structure and style of a webpage - , so elements, attributes and nodes feel natural to work with
• #16: Previously called “Dartboard”, March, 2012. Embedded in the Dart website, so you can try it just going
• #17: Simple Hello World iteration
• #18: Hello World Example using HTML library
• #19: Hello World Example HTML code
• #20: Hello World Example CSS code
• #21: Runs your Dart code via the Dart Virtual Machine or it can compile it to JavaScript and launch it in your web browser if it doesn’t have the Dart VM embedded. It’s the way some companies are doing today: when ready for production, just compile it to JS and make the code available to the entire modern web. Features such as auto-completion, Dart editor highlights Dart syntax, quickly shows APIs and Types declarations, it also outlines program’s classes, fields, and methods
• #22: A game example written in Dart using HTML library that runs in Dartium
• #26: Language specifications: Dart language is familiar as we could see, there’s just a few new features such as optional typing and isolates Libraries dedicated to make the process faster Compiler to JS: Reutilization of JS codes, Dart2JS Compiler VM: Runs command-line for server-side applications and can also be embedded into browsers for client-side applications Integration with Chromium: It has VM embedded, allowing applications to run without first being compiled to JS Dart Editor: Lightweight editor, syntax highlighting and code completion, launch the application in the VM or the web app in Dartium, and also it can compile your web app to JavaScript to be use in another web browser
• #27: You’ll be able to at least runs as fast as JS, but it’s expected to run faster
• #28: You’ll be able to at least runs as fast as JS, but it’s expected to run faster
• #29: You’ll be able to at least runs as fast as JS, but it’s expected to run faster
• #30: You’ll be able to at least runs as fast as JS, but it’s expected to run faster
• #31: You’ll be able to at least runs as fast as JS, but it’s expected to run faster