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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 temporarily exit Vim and go back

... Can use $ ps to find whether we're in a vim sub-shell before calling $ exit to avoid closing the terminal accidentally. Found this here (I haven't tried the prompt indicator mentioned on the website). – Daniel May 2 '19 at 10:07 ...
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How do you unit test a Celery task?

...def add(x, y): return x + y And your test: from nose.tools import eq_ def test_add_task(): rst = add.apply(args=(4, 4)).get() eq_(rst, 8) Hope that helps! share | improve this answ...
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Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of

...[Help 1] ... Had maven 3.0.5, eclipse Kepler with JBoss Dev Studio 7 installed. Computer sitting on internal network with proxy to the internet. Here's what I did. 0. Check the maven repositiory server is up 1. Check Proxy is set up and working First I thought it was a proxy problem, I made sur...
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ActiveRecord: size vs count

...l valid. You'll adapt the function you use depending on your needs. Basically: if you already load all entries, say User.all, then you should use length to avoid another db query if you haven't anything loaded, use count to make a count query on your db if you don't want to bother with these con...
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Find element's index in pandas Series

... The trouble here is it assumes the element being searched for is actually in the list. It's a bummer pandas doesn't seem to have a built in find operation. – jxramos Aug 23 '17 at 17:16 ...
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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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How do you get the index of the current iteration of a foreach loop?

...or iterating over collections that implement IEnumerable. It does this by calling GetEnumerator on the collection, which will return an Enumerator. This Enumerator has a method and a property: MoveNext() Current Current returns the object that Enumerator is currently on, MoveNext updates Current t...
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ArrayList vs List in C#

...face and can be used easily in LINQ (without requiring any Cast or OfType call). ArrayList belongs to the days that C# didn't have generics. It's deprecated in favor of List<T>. You shouldn't use ArrayList in new code that targets .NET >= 2.0 unless you have to interface with an old API t...
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jQuery table sort

... If you want to avoid all the bells and whistles then may I suggest this simple sortElements plugin. Usage: var table = $('table'); $('.sortable th') .wrapInner('<span title="sort this column"/>') .each(function(){ var th ...