A blog about my coding adventures
Introduction In earlier post, we saw how to communicate in and out of components using input/output properties. Another approach we learned was use of template reference variable and @ViewChild decorator to access elements/components on template and call methods on it. You can check this article for details. Today, we’ll learn how to notify the component … Read more
Introduction Observer pattern is simply a publish/subscribe relationship. Like a person of interest we have an object of interest which we call subject or publisher and then we have interested parties and these parties are called observers or subscribers. Subject have something to say and observers are there interested in that saying. When we arrange our code … Read more
Introduction Our physical world is surrounded by events e.g. Door Opened, Engine Started, Plane landed etc and we see events in the virtual world as well e.g. email received, friend-request sent, post liked etc. This is a very common concept, many programming languages support this and in this post we will see that how we … Read more