Tell, don’t ask is a useful key concept when talking about object-oriented programming, it consists in send messages to object (whenever possible) telling object what you want and that we shouldn’t ask questions to it about its state and make decisions for him, it bypass encapsulation.
Tag Archives: Tutorial
each, map, select in ruby? Understanding Enumerable
A lot of ruby programmers feel confusing about the difference between each, map, collect and select in ruby, let’s understand the difference!
Understanding the basic of Big O notation
Big O notation still afraid of a lot of people. Some programmers don’t have a complete cs degree and never studied this, and those who have studied almost always didn’t understand very well. Let’s understand it.
Understanding rails basic CoC under scaffold for beginners
Understand the convention over configuration behind all the magic of Rails.
Understanding Law of Demeter
When studying object-oriented programming and good practices, Law of Demeter is one of the rules that you usually learn.
