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Is it possible to change only the alpha of a rgba background colour on hover?

...solute on the <div> tag Option 1: ::before psuedo-element: .before_method{ position:relative; } .before_method:before{ display:block; content:" "; position:absolute; z-index:-1; background:rgb(18, 176, 41); top:0; left:0; right:0; bottom:0; opacity:0.5; } .before_metho...
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How to properly seed random number generator

...se if you're setting the seed to the time in a fast loop, you'll probably call it with the same seed many times. In your case, as you're calling your randInt function until you have a different value, you're waiting for the time (as returned by Nano) to change. As for all pseudo-random libraries, ...
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Spark java.lang.OutOfMemoryError: Java heap space

... longer need to play with these values, spark will determine them automatically. Similar to above but shuffle memory fraction. If your job doesn't need much shuffle memory then set it to a lower value (this might cause your shuffles to spill to disk which can have catastrophic impact on speed). So...
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How can I know which radio button is selected via jQuery?

...before needed blah blah ) but for pure performance this works faster especially in older browsers: $("#myform").find("input[type='radio']:checked").val(); – Mark Schultheiss Aug 3 '15 at 4:45 ...
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Java: convert List to a String

... StringJoiner is especially useful if one wants to join to something like [a, b, c] including the braces. – koppor Feb 17 '16 at 6:26 ...
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Html.RenderPartial giving me strange overload error?

I made a test partial page named _Test.cshtml and put it in the same directory as my view that will be calling it, here it is: ...
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Programmatically selecting text in an input field on iOS devices (mobile Safari)

How do you programmatically select the text of an input field on iOS devices, e.g. iPhone, iPad running mobile Safari? 10 A...
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Is there a command for formatting HTML in the Atom editor?

...nstall only what is necessary. ie, Atom can be used for developing non-web apps, which don't require those formatters... – ljs.dev Apr 27 '15 at 20:36 7 ...
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Algorithm to detect intersection of two rectangles?

... if you can find a line that separates the two objects. e.g. the objects / all points of an object are on different sides of the line. The fun thing is, that it's sufficient to just check all edges of the two rectangles. If the rectangles don't overlap one of the edges will be the separating axis....
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How to create an empty file at the command line in Windows?

...omad mentions an original one: C:\Users\VonC\prog\tests>aaaa > empty_file 'aaaa' is not recognized as an internal or external command, operable program or batch file. C:\Users\VonC\prog\tests>dir Folder C:\Users\VonC\prog\tests 27/11/2013 10:40 <REP> . 27/11/2013 10...