No code should be forced to depend on methods it does not use. Imagine a class implementing/extending another class and forced to implement all methods from the base class even if all the methods are not exactly relevant. How does it sound? …

“Derived classes must be usable through the base class interface, without the need for user to know the difference.” Some of the content and diagrams in this article have been quoted from the Uncle Bob’s speech in the link below. I highly recommend you to watch the whole video…

In this article Open-Closed Principle is simply explained with the given Dart examples. Let’s go ahead. Some of the content and diagrams in this article have been quoted from the Uncle Bob’s speech in the link below. I highly recommend you to watch the whole video for better understanding. Understanding the Open-Closed Principle (OCP) …

When it comes to creating maintainable, clean and sustainable software, some principles and standards such as SOLID are the game changers. In this article we will briefly walk through the Single Responsibility Principle. Some of the content and diagrams in this article have been quoted from the Uncle Bob’s speech…

As front-end developers, there are times we would like to render a text content with a highlighted sub string. …

I had a simple question in my mind for a long time about widget rendering in Flutter. My question was simply like below: In Flutter docs it is explained build method can be called many times by framework and it is recomended that we should only return widgets through the…

If you are reading this article I think it’s quite possible you’ve heard something about edge detection and Roberts Cross Operator. …

In some cases we may want to get some data from websites to use in our apps or software we are working on. Let’s say you are following new ‘Upcoming Events’ on the Python website but you don’t want to go to the website every time to see whether there…