JavaScript

So NDC Oslo has come and gone, and whilst we wait for the videos for NDC Oslo to be available here are all the FP talks from NDC London this year.

Enjoy

I have been working with Node.js and Serverless heavily. It’s the first time I’ve really spent serious amount of time in Javascript, and I’m making plenty of beginner mistakes and learning lots.

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.

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.

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.

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:

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…

Been a while since I’ve been meaning to check out Reactive Extensions for Javascript, I have been using the .Net version for a while now and blogged about some of the cool things you can do with the .Net version.