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Rule of three (computer programming)
open-in-new
<h2 id="see-also">See also</h2> <ul><li><a href="/facts/Copy-and-paste_programming/j9GXNpBM">Copy-and-paste programming</a></li> <li><a href="/facts/Don%2527t_repeat_yourself/pUF8abIM">Don't repeat yourself</a> (DRY)</li> <li><a href="/facts/You_aren%2527t_gonna_need_it/rQ60HGso">You aren't gonna need it</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Martin Fowler; Kent Beck; John Brant; William Opdyke; Don Roberts (1999). Refactoring: Improving the Design of Existing Code. Addison-Wesley Professional. ISBN 978-0201485677. <a href="978-0201485677" target="_blank">978-0201485677</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Sandi Metz, "The Wrong Abstraction" (2016) <a href="/wiki/Sandi_Metz" target="_blank">/wiki/Sandi_Metz</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> </ol>