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What does the “@” symbol mean in reference to lists in Haskell?

... = Tree a [Tree a], then t@(Tree _ kids) gives you access to both the tree and its children. share | improve this answer | follow | ...
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.bashrc at ssh login

...ogue .bash_profile. It was created by the RVM install. I moved the RVM command to .profile and delete .bash_profile. All running fine now. – Rod Daunoravicius Oct 25 '13 at 10:02 4...
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Why can't I use background image and color together?

What I am trying to do is to show both background-color and background-image , so that half of my div will cover the right shadow background image, and the other left part will cover the background color. ...
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Is it possible to change only the alpha of a rgba background colour on hover?

...0.8); } a:hover div { background-color: rgba(var(--rgb), 1); } To understand how this works, see How do I apply opacity to a CSS color variable? If custom properties are not an option, see the original answer below. Unfortunately, no, you'll have to specify the red, green and blue values again...
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GoogleTest: How to skip a test?

... just found it too and filters – User Aug 26 '11 at 17:01 @Bil...
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Is it possible to change the radio button icon in an android radio button group

I am wanting to allow the user of my android application the ability to set some parameters. The radio button is ideal for this situation. However, I don't like the radio buttons are rendered. ...
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C# nullable string error

... System.String is a reference type and already "nullable". Nullable<T> and the ? suffix are for value types such as Int32, Double, DateTime, etc. share | ...
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Python int to binary string?

...() function: format(n, 'b'). There is no need to parse out the placeholder and match it to an argument, go straight for the value formatting operation itself. Only use str.format() if you need to place the formatted result in a longer string (e.g. use it as a template). – Marti...
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Check if Python Package is installed

... a python script, just do something like this: Python 3.3+ use sys.modules and find_spec: import importlib.util import sys # For illustrative purposes. name = 'itertools' if name in sys.modules: print(f"{name!r} already in sys.modules") elif (spec := importlib.util.find_spec(name)) is not None...
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How to convert a Binary String to a base 10 integer in Java

...s 1 is been multiply by 2, if i am not mistaken in bynary you start with 1 and multiply that value by 2 then grab the result and multiply that one by 2 that will be your 3 place and so on – Christopher Cabezudo Rodriguez Jun 23 '15 at 21:00 ...