While working on an application, I found some modals were duplicated because they could be shown in different parts of it. Also, there was an instance of the modal component for each modal, instead of reusing the same. I came up with a modal system that uses Redux to solve these issues.
With more than 400.000 weekly downloads, ngx-translate might just be the most used internationalization library for Angular. It works out-of-the-box wonderfully on the client side, however it needs some tweaks to work with Angular Universal's SSR.
If you are rendering your SPA using Angular Universal you may have noticed a common issue with the page loading: the content "blinks" and loads again. This behavior may occur due to duplicate requests being made, once in the server, and then in the client.
In this post I'll try to demystify ReactiveX's Observables, how they can be hot or cold, and how to turn one into another. By the way, it doesn't have anything to do with Katy Perry's 2008 song.