I’ve finished all my posts on ngEurope, so here’s a small recap. The conference itself was very decent, with some minor hiccups. Kudos to the organizers, and I hope to be able to attend it again. The sessions and speakers were very good, and it was really interesting (dare I say inspiring?) to see all the things that are happening in the Angular, javascript, and web world. Here is an overview of my posts, which is an overview of what
If you’ve dabbled with AngularJS, it’s very likely you’ve encountered $q. At ngEurope, there was a session devoted to $q, which gave a good overview of what it can do. The ‘old way’ of doing asynchronous programming in javascript, is to use callbacks. But when your application becomes more complex, this leads to nested callbacks, which are ugly, unreadable, hard to maintain,… But they’re also not parallelizable, composable or dynamic. With $q, you can stop the callback-madness. Instead of passing
This session went into some of the patterns you see out there. A quick summary: Services: these are injected singletons. They’re an ideal place to cache application-level data, as a facade for the browser and third-party API’s, or factories for instantiating other objects. Databinding: this is just an implementation of the observer pattern. Inheritance for services & controllers: Standard prototypal inheritance can be used with services and controllers, but it’s recommended to avoid inheritance for page controllers. Thick models: for
At ngEurope, Marcy Sutton’s session on accessibility was one of the sessions I looked forward to most. Accessibility is something we often forget. While screenreaders and other tools are becoming increasingly sophisticated, so are our websites and applications. And it’s worth it to invest some time in accessibility, because everyone should be able to use the web. So here’s a quick recap of what was covered. Accessibility (or a11y, with 11 referring to the 11 omitted letters) starts with using
In my series of posts on ngEurope, I’ve covered quite a bit by now. It’s testament to the volume covered at ngEurope. There are some smaller things I’ll cover in this one post. This doesn’t mean they are less significant. Just that they resonated less with me, but they are interesting enough to mention. After this one, there are still some posts coming where I focus on a single subject. At the end, I’ll post an overview of everything I
To really learn about the changes in Angular 2.0 Core, I recommend you watch the video of the presentation: Here are some things I noted: There is still HTML templating, but some ng- attributes have gone away. The following examples were given: <button (click)=”doSomething()”>Go</button><input [value]=”user.name”> I’m not sure what the difference is between the () and the [] though. Angular 2 will bind to properties of elements, not attributes. For example, a checkbox doesn’t have a checked attribute. It does,
One of the most impressive sessions at ngEurope was Matthieu Lux programming Angular from scratch. He **literally **started with an empty html file and coded in the javascript for databinding. His full demo can be seen on YouTube and is very much worth looking at. It will help you understand the ‘magic’ behind Angular (even though Angular is more than just databinding). You can also look at the source on GitHub. Simply said, Angular keeps a list of watchers that
Rob Eisenberg was at ngEurope to talk about Angular’s new router. Rob is the author of Durandal and has recently been added to the Angular team. Together, they took a good look at the different routers out there (SammyJS, EmberJS, Durandal,…). They used what worked and improved what didn’t to create a new router for Angular 2.0. What’s cool is that they backported it to Angular 1.3. So you can already start using it. Basic features are what you would
At ngEurope, Julie Ralph and Chirayu Krishnappa gave an interesting presentation on Protractor. Protractor is a framework for end-to-end testing. The goal was not unit testing, because unit testing won’t catch everything. Like so many of the projects in the Angular and javascript space, it is heavily under development, but the 1.0 release is planned for July 2015. Protractor is implemented in NodeJS so you can write your tests in javascript. The most common way to run them is to
The Material design language is Google’s design language for Android apps, presented at Google I/O last summer. On a side note: if you take a look at some screenshots, you might say this has been inspired/copied from the Metro design language, with it’s clean and modern look and feel. And you could be right. Personally, I couldn’t care less. Companies and people copy from each other and are inspired by each other. Buy me a beer and we would have