principles:don_t_repeat_yourself
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principles:don_t_repeat_yourself [2012-11-26 20:33] – typo christian | principles:don_t_repeat_yourself [2021-09-02 11:47] – old revision restored (2021-05-19 10:22) 65.21.179.175 | ||
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====== Don't Repeat Yourself (DRY) ====== | ====== Don't Repeat Yourself (DRY) ====== | ||
- | ===== Alternative Names ===== | + | ===== Variants and Alternative Names ===== |
* Single Point of Truth (SPOT) | * Single Point of Truth (SPOT) | ||
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===== Context ===== | ===== Context ===== | ||
- | * [[contexts:Software | + | * [[contexts:Object-Oriented |
- | + | ===== Definition | |
- | ===== Description | + | |
> "Every piece of knowledge must have a single, unambiguous, | > "Every piece of knowledge must have a single, unambiguous, | ||
+ | |||
+ | |||
+ | ===== Description ===== | ||
DRY not only states that code duplication shall be avoided. Rather DRY is a general rule that states that if there is duplication, | DRY not only states that code duplication shall be avoided. Rather DRY is a general rule that states that if there is duplication, | ||
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===== Origin ===== | ===== Origin ===== | ||
- | Andrew Hunt and David Thomas: //The Pragmatic Programmer: From Journeyman to Master// | + | Andrew Hunt and David Thomas: //[[http:// |
===== Evidence ===== | ===== Evidence ===== | ||
- | + | /* Comment out what is not applicable and explain the rest: */ | |
- | Widely accepted: It is generally agreed upon that code duplication is to be avoided. On the other hand the broader meaning of DRY which results in the heavy use of code generators is often not considered. | + | / |
+ | / | ||
+ | [[wiki: | ||
+ | / | ||
===== Relations to Other Principles ===== | ===== Relations to Other Principles ===== | ||
- | ==== Specialization of ==== | + | ==== Generalizations |
- | * [[principles: | ||
- | ==== Generalization of ==== | + | ==== Specializations |
- | ==== Contrary to ==== | + | * [[principles: |
+ | * [[principles: | ||
- | ==== Complementary to ==== | + | ==== Contrary Principles |
- | ==== Part of the Following | + | * [[principles: |
+ | |||
+ | ==== Complementary Principles ==== | ||
+ | |||
+ | |||
+ | ==== Principle Collections ==== | ||
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===== Description Status ===== | ===== Description Status ===== | ||
+ | /* Choose one of the following and comment out the rest: */ | ||
+ | [[wiki: | ||
+ | / | ||
+ | / | ||
+ | |||
- | Stub | + | ===== Further Reading ===== |
+ | * [[wiki> | ||
+ | * [[wp> | ||
+ | * [[http:// |
principles/don_t_repeat_yourself.txt · Last modified: 2021-10-18 21:27 by christian