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Is it possible to run selenium (Firefox) web driver without a GUI?

... display number to :99 Xvfb :99 -ac & export DISPLAY=:99 #you are now having an X display by Xvfb share | improve this answer | follow | ...
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What is more efficient? Using pow to square or just multiply it with itself?

...t/date_time/posix_time/posix_time.hpp> inline boost::posix_time::ptime now() { return boost::posix_time::microsec_clock::local_time(); } #define TEST(num, expression) \ double test##num(double b, long loops) \ { \ double x = 0.0; \ \ boost::posix_time::ptime startTime = now(); \ ...
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C multi-line macro: do/while(0) vs scope block [duplicate]

...) foo(a); else bar(a); where 'foo' and 'bar' are ordinary functions. Now imagine that you'd like to replace function 'foo' with a macro of the above nature if (<condition>) CALL_FUNCS(a); else bar(a); Now, if your macro is defined in accordance with the second approach (just { and...
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MongoDB - Update objects in a document's array (nested updating)

...at this will only increment the first matched subdocument in any array (so if you have another document in the array with "item_name" equal to "my_item_two", it won't get incremented). But this might be what you want. The second part is trickier. We can push a new item to an array without a "my_...
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How to unpack and pack pkg file?

... Packages are just .xar archives with a different extension and a specified file hierarchy. Unfortunately, part of that file hierarchy is a cpio.gz archive of the actual installables, and usually that's what you want to edit. And there's also a Bom file that include...
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JavaScript: Is there a way to get Chrome to break on all errors?

... Edit: The original link I answered with is now invalid.The newer URL would be https://developers.google.com/web/tools/chrome-devtools/javascript/add-breakpoints#exceptions as of 2016-11-11. I realize this question has an answer, but it's no longer accurate. Use the l...
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App.Config Transformation for projects which are not Web Projects in Visual Studio?

... This works now with the Visual Studio AddIn treated in this article: SlowCheetah - Web.config Transformation Syntax now generalized for any XML configuration file. You can right-click on your web.config and click "Add Config Trans...
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How to round the minute of a datetime object

...ect to any time lapse in seconds dt : datetime.datetime object, default now. roundTo : Closest number of seconds to round to, default 1 minute. Author: Thierry Husson 2012 - Use it as you want but don't blame me. """ if dt == None : dt = datetime.datetime.now() seconds = (dt.replac...
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'Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of

...@3x support added? Yes, you need to add a 120x120 high resolution icon. Now, if you want to target only iOS 7, you just need 76 x 76, 120 x 120 and 152 x 152 icon sizes. If you also want to target iOS 6, you’ll need 57 x 57, 72 x 72, 76 x 76, 114 x 114, 120 x 120, 144 x 144 and 152 x 152 icon s...
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What is an “unwrapped value” in Swift?

...birthday presents that come in stiff, hard, colored wrapping. You don't know if there's anything inside the wrapping until you unwrap the present — maybe there is nothing at all inside! If there is something inside, it could be yet another present, which is also wrapped, and which also might con...