Blog Posts

• Why VOIP applications show your IP address to a peer
  10 Feb 2019
  A lot of applications using direct peer2peer connectivity show the public IP address assigned by an internet service provider to your router to a remote un-trusted peer, only a few get crucified for it (see recent The Division 2 beta outrage). If someone else on the internet knows this IP address...
• Typescript union types are intersection types and vice versa.
  20 Jan 2019
  Typescript has structural typing, what that means is that at compile time a value is assignable to a variable of a given type if it has at least all of the non-optional properties of the target type, but can have additional properties defined on it.
• How to make blogging harder than it should be.
  20 Jan 2019
  Blogging is hard.
• Webrtc with transceivers
  16 Sep 2018
  According to MDN the offerToReceiveAudio, offerToReceiveVideo options of createOffer, createAnswer methods are considered legacy, and using RTCRtpTransceiver. Firefox already supports the new way, Chrome is adding support and makes it available behind a debug flag as of Chrome 69 (along some sdp ...
• Reference types in JavaScript
  19 Aug 2018
  The distinction between reference and value types typically belong to traditional compiled languages such as C# and Java.
• WebRTC file transfer sample without cheating
  29 Jul 2018
  WebRTC is a real time communication API built into modern browsers. It enables developers to build audio and video conferencing peer2peer web applications, exchange of arbitrary data and more. Most modern browsers implement the WebRTC specification allowing cross browsers audio and video calls. T...
• Pointers, references and values
  10 Jun 2018
  Coming to Java from a C background I never did understand very well the difference between references (in Java/C#) and C pointers. This difference did not become clear to me until a fair bit of time afterwards. This post is about explaining that difference, providing design and practical reasons ...
• The anathomy of a minimal React + JSX dev setup
  28 May 2018
  This is yet another blog post about minimal React (Preact etc) setups in 2018. This post is meant to address a simple question: what are the minimum dev environment requirements to get started with React + JSX and why each of them is a necessary piece of the puzzle. I’m going to breakdown each of...
• About boredom
  07 May 2018
  This is a non-technical post where the author rambles about boredom, arguing that there is never a reason to indulge in boredom (although no value judgement for boredom is put forward). In summary, if most of our time is spent either engaging with someone else and if the exercise of creativity is...
• Why DraftJS doesn't work on Android
  22 Apr 2018
  DraftJS is a popular open source rich text editing library for React maintained by Facebook. It allows developers to decorate input text as the user types, and provides a way to embed metadata into the decorated text (e.g. a URL.) Also supports commands, keyboard shortcuts … All of these rich de...
• Against the "factory function" pattern
  08 Apr 2018
  This post is about a JavaScript pattern called “factory function”. Here is an argument not so much against this pattern but rather arguing that wanting to achieve encapsulation is not the best reason for wanting to adopt it. Perhaps just playing devil’s advocate. We’ll describe the “factory func...
• Two React MVVM patterns
  24 Mar 2018
  In this post we’ll talk about two MVVM-compatible architectural patterns for React aiming at explaining how a user action all the way deep inside a nested view in the corner of a web app can affect a different view on the other side of the app. For example, say you you split your application int...
• A BEM epiphany
  11 Mar 2018
  In this post, we’ll introduce BEM as a CSS class names naming convention, then talk about how extra class names other than the element’s own can be beneficial to the definition of the style of the page. As the title mentions, this was something of an epiphany for the writer. BEM as a naming conv...
• Why props-based MVVM does not suit React
  04 Mar 2018
  In this post we’ll talk about a variant of the MVC patter to decouple views from the rest of the implementation of a user-facing application. We’ll first introduce MVVM (that’s model-view-viewmodel), how it relates to MVC, and why it is a good pattern. Then we’ll talk a bit about the React compon...
• Value types considered harmful (part 2)
  25 Feb 2018
  This post is part of a series on value types, particularly in the C# language, and why some people consider defining your own value types not useful or even dangerous. In the last post, we presented a distinction between value types, reference types and raw pointers, and gave a “performance” argu...
• Value types considered harmful (part 1)
  17 Feb 2018
  This post is part of a series on value types, particularly in the C# language, and why some people consider defining your own value types not useful or even dangerous. This first post is a general introduction to the subject of value types and the basic arguments for their use. Certain programmi...
• Test post please ignore
  11 Feb 2018
  This is the first line of the test post. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque ac lobortis nisi. Nulla rutrum pellentesque tristique. Suspendisse iaculis fermentum odio. Pellentesque sem tortor, consectetur et gravida ut, elementum condimentum massa. Sed sit amet urna e...