I got this refactor challenge for a simple ruby script that has 3 objects and produces a statement. In effect we have a Movie object, a Rental object and a Customer object....

by Bogdan Crudu

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How To Write a Custom Decoupled CSV Importer

Hey there! Last time I spoke about how to add a bit of microservices style architecture flavor to your monolithic app and the benefits of doing it in such a way. Now I’m going...

by Bogdan Crudu

Design Patterns

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Applying Microservices Style Architecture to Monolithic Apps

Def: Microservices is a software development technique—a variant of the service-oriented architecture (SOA) architectural style that structures an application as a collection...

by Bogdan Crudu

Design Patterns

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Organizing Your Code With The Help Of Modules

We know about classes and how they are an Object defined to “huddle up” like minded or similarly goal oriented objects (namely methods) and we know about class hierarchies,...

by Bogdan Crudu

Design Patterns

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Classical Inheritance In Object Oriented Programming

If you’ve been eying the opportunity to become a computer programmer for some time now, or even if you’ve just started venturing out onto this great and noble...

by Bogdan Crudu

Design Patterns

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The Interface Segregation Principle or Why I Keep My Wife Public And My Mistress Private

The Interface Segregation Principle states that no client should depend on methods that it does not use. In layman terms, what this principle iterates is that you only have to...

by Bogdan Crudu

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How Liskov Substitution Principle Can Save Your Classes

Liskov Substitution Principle is the L in the SOLID programming principles. It was announced to the world by Barbara Liskov in a 1987 conference keynote address titled Data...

by Bogdan Crudu

Design Patterns

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Setting Up Good Interface Design

At first glance your application is made up by methods, many in number and diverse in functionality. It is that diversity that has us make them “huddle up” in teams that share...

by Bogdan Crudu

Design Patterns

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Good Code Abides By The Open-Closed Principle

Def: “In object-oriented programming, the open/closed principle states “software entities (classes, modules, functions, etc.) should be open for extension, but closed...

by Bogdan Crudu

Design Patterns

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Comprehending Good Front-End Design

What is Front-End Design, and most of all: Why is it important? To better understand this first we’ll have to break the concept into parts. So, what is front-end? In...

by Bogdan Crudu

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