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How to create a drop shadow only on one side of an element?

...gth is a spread distance. Positive values cause the shadow shape to expand in all directions by the specified radius. Negative values cause the shadow shape to contract. UPDATE Check out the demo at jsFiddle: http://jsfiddle.net/K88H9/4/ What I did was create a "shadow element" that wo...
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Django gives Bad Request (400) when DEBUG = False

... I change DEBUG to False in the settings file, then the server stopped and it gives the following error on the command prompt: ...
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Connect to a locally built Jekyll Server using mobile devices in the LAN

After using jekyll serve on one machine, a WEBrick server is set up and the site can be accessed from localhost:4000 on this particular PC. ...
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how does array[100] = {0} set the entire array to 0?

...at don't have a specified value, the compiler initializes pointers to NULL and arithmetic types to zero (and recursively applies this to aggregates). The behavior of this code in C++ is described in section 8.5.1.7 of the C++ specification (online draft of C++ spec): the compiler aggregate-initial...
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How to check file MIME type with javascript before upload?

I have read this and this questions which seems to suggest that the file MIME type could be checked using javascript on client side. Now, I understand that the real validation still has to be done on server side. I want to perform a client side checking to avoid unnecessary wastage of server res...
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How do I create an average from a Ruby array?

...ore, it's not as magical as it might appear. It iterates over each element and then applies an accumulator value to it. The accumulator is then handed to the next element. In this case, our accumulator is simply an integer that reflects the sum of all the previous elements. Edit: Commenter Dave Ray...
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Two-dimensional array in Swift

I get so confused about 2D arrays in Swift. Let me describe step by step. And would you please correct me if I am wrong. 8 ...
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show all tags in git log

... (it is about a corner case, but quite instructive about tags in general, and it comes from another SO contributor Jakub Narębski): Please note that the name of tag (heavyweight tag, i.e. tag object) is stored in two places: in the tag object itself as a contents of 'tag' header (y...
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what is faster: in_array or isset? [closed]

... in_array: 1.738441 This builds on Jason's benchmark by filling in some random values and occasionally finding a value that exists in the array. All random, so beware that times will fluctuate. $a = array(); for ($i = 0; $i < 10000; ++$i) { $v = rand(1, 1000000); $a[$v] = $v; } echo "S...
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Find the host name and port using PSQL commands

I have PSQL running, and am trying to get a perl application connecting to the database. Is there a command to find the current port and host that the database is running on? ...