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An existence check before reading a file can catch and/or prevent a fatal error, for instance. For that reason, most programming language libraries contain a means of checking whether a file exists. An existence check can sometimes involve a " brute force " approach of checking all records for a given identifier, as in this Microsoft Excel ...
Unity is a graphical shell originally developed by Canonical Ltd. for its Ubuntu operating system. It debuted in 2010 in the netbook edition of Ubuntu 10.10 and was used until Ubuntu 17.10. Since 2017, its development was taken over by the Unity7 Maintainers (Unity7) [4] and UBports (Lomiri, formerly known as Unity8).
The #ifexist function selects one of two alternatives depending on whether a page exists at the specified title. {{#ifexist: page title | value if page exists | value if page doesn't exist}} The page can be in any namespace, so it can be an article or "content page", an image or other media file, a category, etc.
Unity is a cross-platform game engine developed by Unity Technologies, first announced and released in June 2005 at Apple Worldwide Developers Conference as a Mac OS X game engine. The engine has since been gradually extended to support a variety of desktop , mobile , console , augmented reality , and virtual reality platforms.
Unity Operating System (also known as Unified Operating System [2] or UOS, Chinese: 统一操作系统) is a Linux distribution developed by UnionTech (Chinese: 统信软件, Tǒngxìn) based on Deepin, [3] which is based on Debian.
Unity of Command II received "generally favorable reviews" according to review aggregator Metacritic. [12]Rob Zacny, in a review on Vice, noted how the game departed in so many ways from the original, but remained a "simple joy to play", calling it a "wargame that invites a lot of delightful perfectionist revisiting for a long time to come". [14]
In mathematics, a partition of unity of a topological space is a set of continuous functions from to the unit interval [0,1] such that for every point : there is a neighbourhood of x {\displaystyle x} where all but a finite number of the functions of R {\displaystyle R} are 0, and