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How to match all occurrences of a regex

...ar expression matching enumerator with named capture support" "How to find out the starting point for each match in ruby" Reading about special variables $&, $', $1, $2 in Ruby will be helpful too. share | ...
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What is the best way to ensure only one instance of a Bash script is running? [duplicate]

...inux, but one thing bothers me - will it work if first script will die without removing lock? i.e. in such case i want next run of script to run, and not die "because previous copy is still working" – user80168 Nov 11 '09 at 15:19 ...
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What is a message pump?

In this thread (posted about a year ago) there is a discussion of problems that can come with running Word in a non-interactive session. The (quite strong) advice given there is not to do so. In one post it is stated "The Office APIs all assume you are running Office in an interactive session on...
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What's the fastest way to loop through an array in JavaScript?

... I agree with @jondavidjohn. I tested this code and it turned out to be the less efficient... Check jsperf.com/caching-array-length/84 – victmo Mar 22 '12 at 4:38 ...
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Can a Windows batch file determine its own file name?

...t the path to the current file. Write %~n0 to get just the filename without the extension. Write %~n0%~x0 to get the filename and extension. Also possible to write %~nx0 to get the filename and extension. share ...
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Why is arr = [] faster than arr = new Array?

...t an array; with new Array, the VM needs to use extra CPU cycles to figure out what new Array actually does. share | improve this answer | follow | ...
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Sorting a vector of custom objects

How does one go about sorting a vector containing custom (i.e. user defined) objects. Probably, standard STL algorithm sort along with a predicate (a function or a function object) which would operate on one of the fields (as a key for sorting) in the custom object should be used. Am I on the ...
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Convert blob URL to normal URL

...etch" the data from the blob: URL (even though it's really just pulling it out of your browser's memory, not making an HTTP request). Here's an example: var blob = new Blob(["Hello, world!"], { type: 'text/plain' }); var blobUrl = URL.createObjectURL(blob); var xhr = new XMLHttpRequest; x...
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Default value of function parameter

... I like to write my function prototypes without variable names, like int foo(int). I find that I can write int foo(int=5) again, leaving out the parameter names. No one seems to have mentioned that as yet. – Victor Eijkhout Feb 14...
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What is the default location for MSBuild logs?

... Studio is only supported for C++ projects. You just have to work with the output window for others. See this similar thread: VS2010: minimal build log in output and detailed log in log file And in case you happen to do this for a C++ project, the file is at: ... build log in the intermediate ...