In my proposed lightning talk for the Reactive Conference, I'll create Conway's Game of Life in ClojureScript, and I'll do it in five minutes. I'll use an interactive programming workflow enabled by Figwheel. Each piece will be added into the running application without reloading the page.
If you want to see a little cellular lifeform spawn out of nothing into an running web browser window, I'd appreciate it if you starred this Gist!
Cheers,
(@teropa)
| /** | |
| * This module is a variant which supports document.write. If you need document.write use this instead | |
| * Author: Deepak Subramanian @subudeepak(https://github.com/subudeepak) | |
| * Distributed under MIT License | |
| */ | |
| /*global angular */ | |
| (function (ng) { | |
| 'use strict'; | |
| app.directive('script', function() { | |
| return { |
| const element = ( | |
| <div> | |
| {currentPage === 'signin' ? ( | |
| <SignInPage/> | |
| ) : currentPage === 'welcome' ? ( | |
| <WelcomePage/> | |
| ) : currentPage === 'about' ? ( | |
| <AboutPage/> | |
| ) : ( | |
| <DefaultPage/> |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.