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Vertically align an image inside a div with responsive height

...idth:height = 16:9 */ } Here is the Online Demo. Comment out the lines from the bottom and resize the panel to see the effect. Also, we could apply the padding property to a dummy child or :before/:after pseudo-element to achieve the same result. But note that in this case, the percentage value...
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How can I find where I will be redirected using cURL?

...re, and just use Curl to grab the headers and extract the Location: header from them: $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $result = curl_exec(...
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How to get everything after last slash in a URL?

... CODE: An example of how to implement the better method: from urllib.parse import urlparse; p = urlparse("http://www.example.com/foo.htm?entry=the/bar#another/bar"); print(p.path.rsplit("/", 1)[-1]) Result: foo.htm – Mitch McMabers May 31 at 7...
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Linux/Unix command to determine if process is running?

... Sorry, but while the answer is certainly right from a semantic point of view I'm fully against trying to find a process by pattern matching on the process arg vector. Any such approach is doomed to fail sooner or later (you actually admit to that yourself, by saying that ...
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Opposite of %in%: exclude rows with values specified in a vector

... variable V1 in a data frame D1 can have values represented by the letters from A to Z. I want to create a subset D2, which excludes some values, say, B, N and T. Basically, I want a command which is the opposite of %in% ...
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Checking for NULL pointer in C/C++ [closed]

...e language is much simpler and reliance on the pre-processor more common. From this perspective I'd probably recommend using the NULL macro definition in C. share | improve this answer | ...
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unsigned int vs. size_t

...s to use size_t instead of int / unsigned int pretty much everywhere - from parameters for C string functions to the STL. I am curious as to the reason for this and the benefits it brings. ...
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Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?

... From the MSDN documentation for NameValueCollection.Item Property (String): Caution This property returns null in the following cases: 1) if the specified key is not found; and 2) if the specified key is found and its associ...
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pg_config executable not found

...try also installing libpq-dev sudo apt-get install libpq-dev python-dev From the article: How to install psycopg2 under virtualenv share | improve this answer | follow ...
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Does “\d” in regex mean a digit?

...igit — 1 2 3 — but only odd matches are highlighted, to distinguish it from the case when the whole 123 string is matched. Most regex consoles highlight contiguous matches with different colors, but due to the plugin settings, terminal limitations or for some other reason, only every other grou...