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Despite we have already read a tons of book but if we have not built sense of development yet, the knowledge we gained is only the theory. I would like to say that practices are very essential. We ...
Microservice is a very popular architecture but I don't see many tutorials on internet. So let's me show you what we can do with Microservice. We don't need to do big things. It's like when we solv...
Concepts Nowaday we are familiar with web framework such as Diango, Ruby on Rails, Spring etc. They are using MVC (Model-View-Controller) pattern. That inspired developers a lot and speed up our de...
Data Structures Problem Solving Algorithms
Breadth First Search If you have not known Breadth First Search yet: https://en.wikipedia.org/wiki/Breadth-first_search This is a traditional algorithms we should know cause it would be an efficien...
How do people work good in the morning and performance decreases gradually until Evening? If we don't mention the spirit cause computers don't have it (lol), so the cause is the amount of workload....
Data Structures Ruby on Rails Best Practices
In order to design this function we need to know self-join technique first. Now let's have a look. 1. Self-join SELECT employees.*, managers.name as manager FROM users as employees JOIN users as m...
Developing methods of class for other classes to use, that is interface. Interfaces should not be changed time by time. Because that is knowledge which the other classes know about this class. Thos...
Best Practices Ruby on Rails Design Patterns
I have been coding for many years. I read many books about clean coding and practising them myself. I found that the rule for clean code is Decoupling. Another the name is Isolation. You might know...
AngularJS Javascript Ruby on Rails
Imagine that we have a rails application which have been running for more than six year. Suddenly, we have a requirement about realtime feature. We have two choices. The first one is using third pa...
This is my perspective about Leadership. I have joined many companies so far and I do understand that Leadership is a very important factor making impacts to the company's culture. So why I said th...