In computers, case sensitivity defines whether uppercase and lowercase letters are treated as distinct ( case-sensitive ) or equivalent ( case-insensitive ). For instance, when users interested in learning about dogs search an e-book , "dog" and "Dog" are of the same significance to them. Thus, they request a case-insensitive search. But when they search an online encyclopedia for information about the United Nations , for example, or something with no ambiguity regarding capitalization and ambiguity between two or more terms cut down by capitalization, they may prefer a case-sensitive search.
13-492: [REDACTED] Look up look back , lookback , or look-back in Wiktionary, the free dictionary. Look Back may refer to: Look Back , film with Natalia Bardo , 2014 Look Back , film with Gregory Blair , 2016 Look Back (manga) , a Japanese one-shot web manga by Tatsuki Fujimoto, July 2021 Look Back (film) , a 2024 Japanese anime film adaptation of
26-403: A function is defined in lowercase, it can be called in uppercase, but if a variable is defined in lowercase, it cannot be referred to in uppercase. Nim is case-insensitive and ignores underscores, as long as the first characters match. A text search operation could be case-sensitive or case-insensitive, depending on the system, application, or context. The user can in many cases specify whether
39-475: A search is sensitive to case, e.g. in most text editors, word processors, and Web browsers. A case-insensitive search is more comprehensive, finding "Language" (at the beginning of a sentence), "language", and "LANGUAGE" (in a title in capitals); a case-sensitive search will find the computer language "BASIC" but exclude most of the many unwanted instances of the word. For example, the Google Search engine
52-407: A source code tree for software for Unix-like systems might have both a file named Makefile and a file named makefile in the same directory. In addition, some Mac Installers assume case insensitivity and fail on case-sensitive file systems. The older MS-DOS filesystems FAT12 and FAT16 were case-insensitive and not case-preserving, so that a file whose name is entered as readme.txt or ReadMe.txt
65-583: Is basically case-insensitive, with no option for case-sensitive search. In Oracle SQL, most operations and searches are case-sensitive by default, while in most other DBMSes , SQL searches are case-insensitive by default. Case-insensitive operations are sometimes said to fold case , from the idea of folding the character code table so that upper- and lowercase letters coincide. In filesystems in Unix-like systems, filenames are usually case-sensitive (there can be separate readme.txt and Readme.txt files in
78-1088: Is different from Wikidata All article disambiguation pages All disambiguation pages look back Look for Look back on one of Misplaced Pages's sister projects : [REDACTED] Wiktionary (dictionary) [REDACTED] Wikibooks (textbooks) [REDACTED] Wikiquote (quotations) [REDACTED] Wikisource (library) [REDACTED] Wikiversity (learning resources) [REDACTED] Commons (media) [REDACTED] Wikivoyage (travel guide) [REDACTED] Wikinews (news source) [REDACTED] Wikidata (linked database) [REDACTED] Wikispecies (species directory) Misplaced Pages does not have an article with this exact name. Please search for Look back in Misplaced Pages to check for alternative titles or spellings. You need to log in or create an account and be autoconfirmed to create new articles. Alternatively, you can use
91-613: Is saved as README.TXT. Later, with VFAT in Windows 95 the FAT file systems became case-preserving as an extension of supporting long filenames . Later Windows file systems such as NTFS are internally case-sensitive, and a readme.txt and a Readme.txt can coexist in the same directory. However, for practical purposes filenames behave as case-insensitive as far as users and most software are concerned. This can cause problems for developers or software coming from Unix-like environments, similar to
104-464: The article wizard to submit a draft for review, or request a new article . Search for " Look back " in existing articles. Look for pages within Misplaced Pages that link to this title . Other reasons this message may be displayed: If a page was recently created here, it may not be visible yet because of a delay in updating the database; wait a few minutes or try the purge function . Titles on Misplaced Pages are case sensitive except for
117-694: The first character; please check alternative capitalizations and consider adding a redirect here to the correct title. If the page has been deleted, check the deletion log , and see Why was the page I created deleted? Retrieved from " https://en.wikipedia.org/wiki/Look_back " Case sensitivity Case sensitivity may differ depending on the situation: Some programming languages are case-sensitive for their identifiers ( C , C++ , Java , C# , Verilog , Ruby , Python and Swift ). Others are case-insensitive (i.e., not case-sensitive), such as ABAP , Ada , most BASICs (an exception being BBC BASIC ), Common Lisp , Fortran , SQL (for
130-499: The manga "Look Back" (Tone Damli song) , by Norwegian singer Tone Damli, 2012 "Look Back" (Diplo song) , by American DJ Diplo from the album California , 2018 Lookback option , a type of finance option See also [ edit ] Don't Look Back (disambiguation) Lookback distance , a type of astronomical distance Looking Back (disambiguation) Thirumbi Paar (disambiguation) ( lit. ' Look Back ' ), various Indian films Topics referred to by
143-506: The same directory). MacOS is somewhat unusual in that, by default, it uses HFS+ and APFS in a case-insensitive (so that there cannot be a readme.txt and a Readme.txt in the same directory) but case-preserving mode (so that a file created as readme.txt is shown as readme.txt and a file created as Readme.txt is shown as Readme.txt) by default. This causes some issues for developers and power users , because most file systems in other Unix-like environments are case-sensitive, and, for example,
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#1732773200139156-415: The same term [REDACTED] This disambiguation page lists articles associated with the title Look Back . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Look_Back&oldid=1257625568 " Category : Disambiguation pages Hidden categories: Short description
169-511: The syntax, and for some vendor implementations, e.g. Microsoft SQL Server , the data itself) Pascal , Rexx and ooRexx . There are also languages, such as Haskell , Prolog , and Go , in which the capitalisation of an identifier encodes information about its semantics . Some other programming languages have varying case sensitivity; in PHP , for example, variable names are case-sensitive but function names are not case-sensitive. This means that if
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