When an application has many time-consuming processes then a progressbar in the central form is necessary, so that there are not 20…

For some time now I am struggling to find a way to test RxJS code that uses functions with time in them. Let’s look at an example of what we…

Using immutable data structures is all the rage and for a good reason. After having used immutables in some large projects I can personally…

I frequently come across the question of how we can test a presentable in Ionic. A presentable is component that is presented in a separate…

After you finish building your app and you are ready to deploy to the App Stores you will realize that you need to use specific variables…

Some time ago I wrote a microservice in plain es5 javascript running on node 4.x I recently wanted to make some changes to the service and…

Every developer at some point gets a task to make something faster. You might hear: Some of our users complain that this part of app feels…

Hey there, long time no see! Have you ever wanted to give certain users in your Firebase project special privileges, like being able to…

In many JavaScript applications, it’s common to have models that contain collections of other objects. For example, a user profile might…

After upgrading some of our projects to Angular 15 and making sure everything works as expected, I decided it was time to delve into…