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How can I determine what font a browser is actually using to render some text?

...d which style is used, such as Regular, ExtraLight, Italic, BoldItalic and all. For Chrome, go into DevTools' "Elements", go to its "Computed" tab, and scroll all the way down to the section called "Rendered Fonts". Unlike with Firefox, this only shows the base font name, not any specific style it ...
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How to achieve code folding effects in Emacs?

... Folding is generally unnecessary with emacs, as it has tools that explicitly implement the actions people do manually when folding code. Most people have good success with simple incremental searches. See "foo" mentioned somewhere? Type C-...
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How does a garbage collector avoid an infinite loop here?

...wo seconds, the CLR just kills the process - no more Finalize methods are called. Also, if it takes more then 40 seconds to call all objects' Finalize methods, again, the CLR just kills the process. Also, as Servy mentions, it has its own thread. ...
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:active pseudo-class doesn't work in mobile safari

...> Applied just once, as opposed to every button element seemed to fix all buttons on the page. Alternatively you could use this small JS library called 'Fastclick'. It speed up click events on touch devices and takes care of this issue too. ...
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How to efficiently compare two unordered lists (not sets) in Python?

... For short lists, big-O analysis is usually irrelevant because the timings are dominated by constant factors. For the longer lists, I suspect something is wrong with your benchmarking. For 100 ints with 5 repeats each, I get: 127 usec for sorted and 42 for Count...
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What is the difference between a port and a socket?

...because a connection is identified by both its local and remote endpoints, allowing traffic to be routed to a specific service instance. There can only be one listener socket for a given address/port combination. Exposition This was an interesting question that forced me to re-examine a number of...
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Finding current executable's path without /proc/self/exe

...e) method is to use argv[0]. Although it could be set to anything by the calling program, by convention it is set to either a path name of the executable or a name that was found using $PATH. Some shells, including bash and ksh, set the environment variable "_" to the full path of the executable be...
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JavaScript dependency management: npm vs. bower vs. volo [closed]

...s the difference between npm and bower is: npm manages JavaScript modules called packages and Bower manages front-end components (i.e. css, html, and JavaScript) called components. npm is also used to install bower. Here is an expansive article on npm and bower (does not cover volo) it goes into ple...
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How to reset a form using jQuery with .reset() method

...igger('reset'); i have added profile_img_form named class on my form then called it. it does not reset my form and returning error message like Uncaught SyntaxError: Invalid regular expression: /(^|\.)bs\.(?:.*\.|)fileinput(\.|$)/: Kindly suggest what is issue. Thanks. – Kamle...
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How to merge specific files from Git branches

... not stage this hunk nor any of the remaining ones a - stage this hunk and all later hunks in the file d - do not stage this hunk nor any of the later hunks in the file g - select a hunk to go to / - search for a hunk matching the given regex j - leave this hunk undecided, see next undecided hunk J ...