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You_aren't_gonna_need_it

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From Wikipedia, the free encyclopedia "You aren't gonna need it"[1][2] (YAGNI)[3] is a principle which arose from extreme programming (XP) that states a programmer should not add functionality until deemed necessary.[4] Other forms of the phrase include "You aren't going to need it" [5][6] and "You ain't gonna need it".[7] Ron Jeffries, a co-founder of XP, explained the philosophy: "Always implement things when you actually need them, never when you just foresee that you [will] need them."[8] YAGNI is a principle behind the XP practice of "do the simplest thing that could possibly work"…

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