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In .NET, which loop runs faster, 'for' or 'foreach'?

... Enumerable.Select has an overload that lets you obtain the index of the item, so even the need for an index does not mandate using for. See msdn.microsoft.com/en-us/library/bb534869.aspx – TrueWill ...
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NERDTree reload new files

...imply hit r to refresh the current directory's listing or R to refresh the root directory's listing . Do you see "Press ? for help" at the top of the NERDTree window? It means that you can press ? for help. If you do, you will see an exhaustive listing of NERDTree shortcuts. That's neat. More gene...
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How do I get the row count of a pandas DataFrame?

... answered Apr 11 '13 at 8:24 rootroot 54.3k1818 gold badges9292 silver badges113113 bronze badges ...
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How to initialize log4j properly?

...operties file format taken from the log4j intro documentation page: log4j.rootLogger=debug, stdout, R log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout # Pattern to output the caller's file name and line number. log4j.appender.stdou...
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Sending POST data in Android

... "6 - response !empty..."); // JSONObject jRoot = new JSONObject(response); JSONObject d = jRoot.getJSONObject("d"); int ResultType = d.getInt("ResultType"); Log.e("ResultType", ResultType + ""); if (Re...
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move_uploaded_file gives “failed to open stream: Permission denied” error

... This is because images and tmp_file_upload are only writable by root user. For upload to work we need to make the owner of those folders same as httpd process owner OR make them globally writable (bad practice). Check apache process owner: $ps aux | grep httpd. The first column will be ...
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typedef struct vs struct definitions [duplicate]

...a typedef can make C code more C++-like. In C++, structs (and classes, and unions, and enums) are referred to using a name that's a single identifier. Referring to a type as struct foo is more C-like. – Keith Thompson Feb 9 at 22:19 ...
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Creating a daemon in Linux

...e permissions */ umask(0); /* Change the working directory to the root directory */ /* or another appropriated directory */ chdir("/"); /* Close all open file descriptors */ int x; for (x = sysconf(_SC_OPEN_MAX); x>=0; x--) { close (x); } /* Open...
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Repository Pattern Step by Step Explanation [closed]

... unit tests There are other benefits too, for example, if you were using MySQL and wanted to switch to SQL Server - but I have never actually seen this in practice! share | improve this answer ...
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Error 908: Permission Receive SMS - #5 by Taifun - MIT App Inventor Help - MIT App Inventor Community

:root { --animation-state: paused; } /* user picked a theme where the "regular" scheme is dark */ /* user picked a theme a light scheme and also enabled a dark scheme */ /* deal with light scheme first */ @media (pref...