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2. Code refactoring - Wikipedia

   en.wikipedia.org/wiki/Code_refactoring

   Code refactoring. In computer programming and software design, code refactoring is the process of restructuring existing source code —changing the factoring —without changing its external behavior. Refactoring is intended to improve the design, structure, and/or implementation of the software (its non-functional attributes), while ...

3. Rewrite (programming) - Wikipedia

   en.wikipedia.org/wiki/Rewrite_(programming)

   Rewrite (programming) A rewrite in computer programming is the act or result of re-implementing a large portion of existing functionality without re-use of its source code. When the rewrite uses no existing code at all, it is common to speak of a rewrite from scratch.

4. Duplicate code - Wikipedia

   en.wikipedia.org/wiki/Duplicate_code

   Duplicate code. In computer programming, duplicate code is a sequence of source code that occurs more than once, either within a program or across different programs owned or maintained by the same entity. Duplicate code is generally considered undesirable for a number of reasons. [1] A minimum requirement is usually applied to the quantity of ...

5. Strangler fig pattern - Wikipedia

   en.wikipedia.org/wiki/Strangler_fig_pattern

   Strangler fig pattern. In programming, the strangler fig pattern or strangler pattern is an architectural pattern that involves wrapping old code, with the intent of redirecting it to newer code or to log uses of the old code. Created by Martin Fowler, [1] its name derives from the strangler fig plant, which tends to grow on trees and ...

6. Test-driven development - Wikipedia

   en.wikipedia.org/wiki/Test-driven_development

   e. Test-driven development (TDD) is a way of writing code that involves writing an automated unit-level test case that fails, then writing just enough code to make the test pass, then refactoring both the test code and the production code, then repeating with another new test case. Alternative approaches to writing automated tests is to write ...

7. Rule of three (computer programming) - Wikipedia

   en.wikipedia.org/wiki/Rule_of_three_(computer...

   Rule of three (computer programming) Rule of three ("Three strikes and you refactor") is a code refactoring rule of thumb to decide when similar pieces of code should be refactored to avoid duplication. It states that two instances of similar code do not require refactoring, but when similar code is used three times, it should be extracted into ...