A story about code and design

TypeScript's Unknown data type

Apr 29, 20213 min read

There are data types in TypeScript that are better known than others. Today I would like to introduce a less known data type: unknown. The unknown data type The unknown type exists since TypeScript 3.0 (the current version is 4.2) and is a top type. ...

But what is ECMAScript ?

Apr 13, 20212 min read

You can read it everywhere, es2020, es6, ... but what is this exactly? To fully understand what is behind the "ES" script names it is necessary to first know ECMA-262. ECMA-262 ECMA-262 is the specification (or technical standard) of ECMAScript. This...

Image recognition with TensorFlow.js

Mar 3, 20219 min read

In this post I will show you how to create a simple image classifier, without any machine learning knowledge using a pretrained model form the TensorFlow team. Checkout the demo and the source code. Table of contents Table of contents What you need ...

Let's be fancy with a console signature

Feb 22, 20211 min read

Create a stylized console message and say hello to your fellow developers. Let's get started First you should know that a console message, which is the first argument of a console.log, can be formatted using other arguments. console.log("I'm the me...

Unit Testing in JavaScript

Oct 28, 20206 min read

The different automated testing types Unit tests Integration tests End-to-end tests What is a Unit Test Unit tests are also known as component tests. They take the smallest piece of testable code (in most cases functions) and check if it behaves ...

My favorite tricks with Sass

Oct 19, 20202 min read

1. Dynamically create component variants based on theme colors // Create a map containing all the important colors $theme-colors: ( "danger": #ff0000, "success": #00ff00, "info": #0000ff, ) !default; // Loop through the map to create a variant...