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Bootstrap carousel multiple frames at once

... Updated 2019... Bootstrap 4 The carousel has changed in 4.x, and the multi-slide animation transitions can be overridden like this... .carousel-inner .carousel-item-right.active, .carousel-inner .carousel-item-next { transform: translateX(33.33%); } .carousel-inner .carousel-item-l...
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Difference between map and collect in Ruby?

I have Googled this and got patchy / contradictory opinions - is there actually any difference between doing a map and doing a collect on an array in Ruby/Rails? ...
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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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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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Get contentEditable caret index position

...umes: There is always a single text node within the editable <div> and no other nodes The editable div does not have the CSS white-space property set to pre If you need a more general approach that will work content with nested elements, try this answer: https://stackoverflow.com/a/481202...
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Get last n lines of a file, similar to tail

I'm writing a log file viewer for a web application and for that I want to paginate through the lines of the log file. The items in the file are line based with the newest item on the bottom. ...
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Addressing localhost from a VirtualBox virtual machine [closed]

...-from-virtualbox-xp-install-ubuntu It suggests using IP: http://10.0.2.2, and it worked for me. So, I edited the hosts file, C:\windows\system32\drivers\etc\hosts, and added this entry: 10.0.2.2 outer If you're testing on IE8, remember to put http:// in the address bar. Just putting the ip d...
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Reduce left and right margins in matplotlib plot

... If you have multiple subplots and want to save each of them, you can use this with fig.savefig() too. (plt.savefig() will not work in that case.) – Abhranil Das Apr 21 '13 at 12:07 ...
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Creating a Pandas DataFrame from a Numpy array: How do I specify the index column and column headers

...g of a list of lists, representing a two-dimensional array with row labels and column names as shown below: 9 Answers ...
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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...