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Haskell function composition (.) and function application ($) idioms: correct use

... Is there a reason for using the books way that is much better than using all ($) symbols? There's no special reason. Bryan and I both prefer to reduce line noise. . is quieter than $. As a result, the book uses the f . g . h $ x syntax. ...
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How can I get the list of files in a directory using C or C++?

... In small and simple tasks I do not use boost, I use dirent.h which is also available for windows: DIR *dir; struct dirent *ent; if ((dir = opendir ("c:\\src\\")) != NULL) { /* print all the files and directories within director...
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Get nth character of a string in Swift programming language

...ng a linear loop inside another linear loop means this for loop is accidentally O(n2) — as the length of the string increases, the time this loop takes increases quadratically. Instead of doing that you could use the characters's string collection. – ignaciohugog ...
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Error in strings.xml file in Android

... This can cause a problem when you have a lot of strings and use replace all. See my answer. – Dan Bray Oct 23 '18 at 14:08 add a comment  |  ...
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How do I prevent site scraping? [closed]

...es, these work by extracting data from pages based on patterns in HTML, usually ignoring everything else. For example: If your website has a search feature, such a scraper might submit a request for a search, and then get all the result links and their titles from the results page HTML, in order t...
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What is a Y-combinator? [closed]

...m the “functional” side of things. Most programmers don't know much at all about combinators, if they've even heard about them. ...
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Consequences of using graft in Mercurial

...state F with the normal delta +f. There's nothing strange here — we have all the states (D, E, and F) in the repository already. So seen like this, it's clear that we can merge D and F. Merging is a matter of "completing the diamond". So we find a new state M that is a mix of D and F and where th...
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Preserving order with LINQ

... Actually, I think Distinct preserves original (first found) order - so {1,2,1,3,1,3,4,1,5} would be {1,2,3,4,5} – Marc Gravell♦ Oct 15 '08 at 14:33 ...
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What jsf component can render a div tag?

...if you want to wrap any of your JSF code with the div tag. Alternatively, all the major UI Frameworks have a div component tag, or you could write your own. share | improve this answer | ...
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Batch file to copy files from one folder to another folder

I have a storage folder on a network in which all users will store their active data on a server. Now that server is going to be replaced by a new one due to place problem so I need to copy sub folders files from the old server storage folder to new server storage folder. I have below ex: ...