How to set and read bitwise enum values in TypeScript

Using a bitwise number in an enum is the way to have a single variable with many potential values. A canonical example is to have a status that can be in several states at the same time. I recently create a generic interface in TypeScript to wrap an entity (any business logic type) to add […]

Simple Pattern to use Highchart and React

At the time I am compositing this entry, Highchart doesn’t collaborate naturally in a React project. There is an open source project available but it is not part of the official release. However, using directly the library from Highchart into your TypeScript and React project is not a huge burden. In this article, we will […]

My Preparation and Experience of Shift Conference in Croatia

One morning in late February this year, I received an invitation to present at Shift Conference which is the largest developer conference in Southeast Europe. I discussed with my manager, and within few hours I was committing giving a 45 minutes talk. Netflix is excellent in this regard by encouraging its engineers not only to […]

TypeScript and Redux Immutability Functions

The actual system I am working in my daily job is using TypeScript, React and Redux. I am not relying on any framework to do the immutability. I am using pure JavaScript cloning mechanism and have unit tests for each of my reducer that makes sure that the instance returned is not the same. It […]

How to Organize Model Type with TypeScript and React/Redux

I will not pretend that there is a universal way organized type in a Redux/React application. Instead, I’ll present what, in the project I am actually working in my day to day job, I found an easy, clean and clear way to organize types. First, let’s establish that other than all the business logic types […]

Index Signature in TypeScript with a Twist

What if I tell you that the type you specify as the key in your index signature in TypeScript is useless? This is pretty much the case today with version 2.8.3. A historical reason is behind this design and this article will cover the current quirk that you might never notice even if you are […]

Reducing Boilerplate of Redux with TypeScript

For quite a while, I found that working with TypeScript and Redux was slow in term of all the boilerplate required when adding a new Redux’s action. The creation of a unique constant, a unique type to narrow down the type and then an action creator function to have a unique place to call the […]

TypeScript Exhaustive Check

There is a time where you have a range of value and a function that must act when all entries of the data. In TypeScript, an enum or a union of value can define the set. The problem is that these sets can change in time. The ideal treatment is having TypeScript to notice the […]

4 Features to Boost React-Redux Performance

Recently, I’ve been optimizing one of our websites and I’ve seen tremendous improvement by adding or modifying some behaviors of how Redux and React communicate. In this article, we will see four approaches that can work together to avoid propagating a render to React. The fours area we will cover are : Batch your actions […]

Quick Static Page with Github, Namecheap and Cloudflare

I recently published a TypeScript book that cover all features of the language from its inception to version 2.8. I wanted to have a static page that presents the book without having to host it myself. My goal was to create and publish everything in the evening. The first step was to get a template […]