by DRY Principle
- Functionality Flow principle is a coding principle.
- Dry refers to the existence of minimum duplication in a code :
- DRY is the principle to avoid repetition of the same information in one system, preventing the same code from being produced multiple times on code base.
- Don’t repeat yourself (DRY) is a principle of software development aimed at reducing repetition and duplication of software codes :
- Don’t repeat yourself (DRY, or sometimes Do not Repeat Yourself) is a principle of software development aimed at reducing repetition of software patterns, replacing it with abstractions or using data normalization to avoid redundancy.
- The DRY principle is stated as “Every piece of knowledge must have a single, unambiguous, authoritative representation within a system”.
- The principle has been formulated by Andy Hunt and Dave Thomas in their book “The Pragmatic Programmer”.
DRY Benefits
- It saves overall development time and effort
- Code is easy to maintain
- It reduces the chances of bugs
DRY and WET solutions
- Violations of DRY are typically referred to as WET solutions.
- Wet Solutions which stands for either “write everything twice”, “we enjoy typing” or “waste everyone’s time”.
- It is difficult to manage such code and if the logic changes, then developers have to make changes in all the places where they have written the code, thereby wasting everyone’s time.
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