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Current time in microseconds in java

...ble on many platforms, 2) returning millisecond accuracy in a microsecond call leads to application portability issues. – Stephen C Nov 11 '09 at 4:17 9 ...
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sed command with -i option (in-place editing) works fine on Ubuntu but not Mac [duplicate]

... That's simpler than trying to work out which variant of sed you have installed or other gizmos I've seen suggested. I hope you keep the file under version control (or otherwise backed up) so that you can recover if there's a bug in your sed script. Of course, the .bak file gives you that protect...
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Python call function within class

... Since these are member functions, call it as a member function on the instance, self. def isNear(self, p): self.distToPoint(p) ... share | improve t...
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Is it secure to store passwords as environment variables (rather than as plain text) in config files

...e that is meant to look like a configuration file. An attacker will eventually figure out what's going on, or stumble across it. Security provided by encryption that is trivial to break, (think caesar cipher!). Security provided by encryption that can be broken with some effort. Security provided b...
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Render HTML to PDF in Django site

... Try the solution from Reportlab. Download it and install it as usual with python setup.py install You will also need to install the following modules: xhtml2pdf, html5lib, pypdf with easy_install. Here is an usage example: First define this function: import cStringIO as Str...
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Python argparse command line flags without arguments

...a look at http://docs.python.org/dev/library/argparse.html#action (specifically store_true and store_false) import argparse parser = argparse.ArgumentParser() parser.add_argument('-w', action='store_true') where action='store_true' implies default=False. Conversely, you could haveaction='store_...
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Why are local variables not initialized in Java?

... edited Feb 3 '14 at 13:33 allprog 15.7k88 gold badges5353 silver badges9393 bronze badges answered Jan 6 '09 at 7:18 ...
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How to select an element by classname using jqLite?

... Essentially, and as-noted by @kevin-b: // find('#id') angular.element(document.querySelector('#id')) //find('.classname'), assumes you already have the starting elem to search from angular.element(elem.querySelector('.classname'))...
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What is the meaning of prepended double colon “::”?

...space you're currently in. For instance, if you had two different classes called Configuration as such: class Configuration; // class 1, in global namespace namespace MyApp { class Configuration; // class 2, different from class 1 function blah() { // resolves to MyApp::Configur...
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How much faster is Redis than mongoDB?

...benchmarks that test your case and link from this post instead, then we'll all benefit from your "tested" opinion. – Homer6 Jan 7 '13 at 18:38 ...