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Remove spaces from std::string in C++

...ithm remove_if and isspace: remove_if(str.begin(), str.end(), isspace); Now the algorithm itself can't change the container(only modify the values), so it actually shuffles the values around and returns a pointer to where the end now should be. So we have to call string::erase to actually modify ...
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Bash variable scope

...piping into the while loop, a sub-shell is created to run the while loop. Now this child process has its own copy of the environment and can't pass any variables back to its parent (as in any unix process). Therefore you'll need to restructure so that you're not piping into the loop. Alternatively...
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How to use java.String.format in Scala?

...ethod of a string. But if I place %1, %2, etc. in the string, java.util.UnknownFormatConversionException is thrown pointing to a confusing Java source code piece: ...
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How do I specify local .gem files in my Gemfile?

... Super trick! here is small addition for that. How to verify that gems are now available locally: gem list -r --clear-sources -s file:/repo – Алексей Лещук Oct 9 '19 at 14:50 ...
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Stop caching for PHP 5.5.3 in MAMP

... Disable OPCache MAMP now turns on OPCache by default, you can disable it by editing your php.ini file. Make sure you edit the correct php.ini. I was running into the same problem myself. MAMP with PHP version 5.5.3 runs OPcache by default, but y...
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Use cases for the 'setdefault' dict method

...or them: headers = parse_headers( msg ) # parse the message, get a dict # now add all the optional headers for headername, defaultvalue in optional_headers: headers.setdefault( headername, defaultvalue ) share ...
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Nullable type issue with ?: Conditional Operator

...ked a bunch of times already. The compiler is telling you that it doesn't know how convert null into a DateTime. The solution is simple: DateTime? foo; foo = true ? (DateTime?)null : new DateTime(0); Note that Nullable<DateTime> can be written DateTime? which will save you a bunch of typin...
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How to remove constraints from my MySQL table?

...column to other tables columns. Mine had a standard name given to it. Also now I now that you can drop foreign keys safetely without the column itself being dropped – Lealo Aug 18 '17 at 0:35 ...
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Mockito match any class argument

... would be great if actually add the class that I need to import since now are many "any" from mockito – jpganz18 Sep 2 '19 at 13:05 add a comment  |  ...
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Draw a perfect circle from user's touch

...cle" (from my understanding: make the drawn circle perfectly round, as we know no matter how stable we try to draw something with our finger on the screen, a circle is never really as rounded like a circle should be). ...