It feels like a little while since I last played around with the <canvas> element, so I spent some time over the weekend and put together a simple painting app using the canvas and here is the end result. Here’s some screenshots:    Spray Tool One of the interesting things with this simple painting app [...]

For those of you who are familiar with Reactive Extensions you should know all about observables already, but did you know that there’s another kind of observable sequence – Rx.ConnectableObservable. The difference between the two types of observable sequences is well explained here, in short, a connectable observable sequence allows you to share the same [...]

I wrote previously about how you can set up multiple observable sequences and subscribe to them with multiple observers and create a many-to-many relationship between them. Whilst this is a very flexible model with a clear separation of responsibilities, often it requires more work to set up and is more than what you need for [...]

Matthew Podwysocki posted a couple of very good articles on RxJS on codebetter.com and amongst them was a simple demo to do a look up on wikipedia using their open API: Introduction to the Reactive Extensions for JavaScript – Wikipedia Lookup Unfortunately, there wasn’t a live demo you can play around with and see it [...]

One of the great things about the Reactive Extensions for Javascript is that you can easily create a many-to-many relationship between observable sequences of values and observers who handles the arrival of new values. You should have a read of these couple of posts first: Introduction to the Reactive Extensions for Javascript – Creating Observables [...]