The Don't Repeat Yourself (DRY) Principle

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Ruby On Rails Design Philosophy
Ruby on Rails' design philosophy centers on certain key principles, as outlined in the Rails Doctrine, primarily:

Convention on configuration
The DRY principle is a concept commonly used in software development. It encourages developers to reduce repetition in their code base and isolate functionality into small, easier to maintain functions or files. This makes the code belize email list modular, easier to understand, maintain, and debug . Ruby on Rails has taken advantage of one of Ruby's features, called meta-programming , in an effort to keep code DRY .

The principle of " convention over configuration " is key to how Ruby on Rails has evolved over time. The term was coined by David Heinemeier Hanson to describe the design philosophy he chose when developing Ruby on Rails while working at Basecamp.

“Convention over configuration” is a practice used by frameworks where they set “reasonable defaults” to free developers from total control, thus freeing programmers from having to make certain decisions, allowing them to concentrate on developing applications. However, developers can override these conventions if needed to remain flexible. Developers are then only responsible for configurations that differ from Ruby on Rails conventions.