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Is std::vector so much slower than plain arrays?

...d the array only once. Note: when you resize() the vector you are not only allocating the memory but also running through the vector and calling the constructor on each member. Re-Arranging the code slightly so that the vector only initializes each object once: std::vector<Pixel> pixels(di...
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How to combine two jQuery results

... var $foos = $('.foo'); var $foosAndBars = $foos.add('.bar'); or var $allFoosAndBars = $allFoos.add($allBars); share | improve this answer | follow | ...
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disable all form elements inside div

is there a way to disable all fields (textarea/textfield/option/input/checkbox/submit etc) in a form by telling only the parent div name in jquery/javascript? ...
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CSS Progress Circle [closed]

...ster is lying. This answer uses heavy amounts of Javascript via a library called LESS. – GetFree May 30 '16 at 16:04 6 ...
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jquery - fastest way to remove all rows from a very large table

...eleting would be much faster than insertion. Kind of makes me want to do really ugly stuff like just hide the table and create a new one when I want to update it. – morgancodes Apr 6 '09 at 20:53 ...
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Remap values in pandas column with a dict

... It looks like this doesn't work anymore at all, which isn't surprising given the answer was from 4 years ago. This question needs a new answer given how general the operation is... – PrestonH Nov 21 '17 at 17:01 ...
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How does the Windows Command Interpreter (CMD.EXE) parse scripts?

...s are on either side of a pipe Phase 5.5) Execute Redirection: Phase 6) CALL processing/Caret doubling: Only if the command token is CALL Phase 7) Execute: The command is executed Here are details for each phase: Note that the phases described below are only a model of how the batch parser w...
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Where should virtualenvs be created?

... Many people use the virtualenvwrapper tool, which keeps all virtualenvs in the same place (the ~/.virtualenvs directory) and allows shortcuts for creating and keeping them there. For example, you might do: mkvirtualenv djangoproject and then later: workon djangoproject It's ...
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How to set standard encoding in Visual Studio

...erwise-default codepage. Also, which files are not being saved as UTF-8? All of my .cs, .csproj, .sln, .config, .as*x, etc, all save as UTF-8 (with signature, the byte order marks), by default. share | ...
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What is the right way to check for a null string in Objective-C?

...that people who are new to Objective C have trouble getting used to, especially coming form other languages where messages/method calls to nil crash. share | improve this answer | ...