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How to calculate a time difference in C++

...turns the CPU time consumed by the program. So if the program is run in parallel the time returned by the function would be the accumulated of the time spent on all CPUs, rather than the time elapsed cplusplus.com/reference/ctime/clock – Ameer Jewdaki Aug 3 '1...
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Private properties in JavaScript ES6 classes

...class fields work. You can't currently use this in constructor before you call super(). Yet babel puts them before super. – seeker_of_bacon Oct 3 '18 at 16:23 ...
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Execute the setInterval function without delay the first time

... It's simplest to just call the function yourself directly the first time: foo(); setInterval(foo, delay); However there are good reasons to avoid setInterval - in particular in some circumstances a whole load of setInterval events can arrive imm...
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How do you detect the clearing of a “search” HTML5 input?

...Javascript or jQuery other than, say, detecting when the box is clicked at all or doing some sort of location click-detecting (x-position/y-position)? ...
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How to remove the querystring and get only the url?

...he querystring. explode() is less direct because it must produce a potentially two-element array by which the first element must be accessed. Some other techniques may break when the querystring is missing or potentially mutate other/unintended substrings in the url -- these techniques should be a...
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How to save an image locally using Python whose URL address I already know?

... Python 2 Here is a more straightforward way if all you want to do is save it as a file: import urllib urllib.urlretrieve("http://www.digimouth.com/news/media/2011/09/google-logo.jpg", "local-filename.jpg") The second argument is the local path where the file should be s...
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Can linux cat command be used for writing text to file?

...swered May 2 '15 at 16:36 stolen_leavesstolen_leaves 1,05799 silver badges1818 bronze badges ...
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What's the difference between echo, print, and print_r in PHP?

...s, although such usage is rare; echo is slightly faster than print. (Personally, I always use echo, never print.) var_dump prints out a detailed dump of a variable, including its type and the type of any sub-items (if it's an array or an object). print_r prints a variable in a more human-readable f...
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How do I configure different environments in Angular.js?

...strict"; angular.module("config", []).constant("ENV", "development"); Finally, I declare the dependency on whatever modules need it: // the 'config' dependency is generated via grunt var app = angular.module('myApp', [ 'config' ]); Now my constants can be dependency injected where needed. E.g.,...
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How to run an EXE file in PowerShell with parameters with spaces and quotes

...mand starting with a string it just evaluates the string, that is, it typically echos it to the screen, for example: PS> "Hello World" Hello World If you want PowerShell to interpret the string as a command name then use the call operator (&) like so: PS> & 'C:\Program Files\IIS\Mi...