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'and' (boolean) vs '&' (bitwise) - Why difference in behavior with lists vs numpy arrays?
What explains the difference in behavior of boolean and bitwise operations on lists vs NumPy arrays?
8 Answers
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CSS selector for first element with class
I have a bunch of elements with a class name red , but I can't seem to select the first element with the class="red" using the following CSS rule:
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If Python is interpreted, what are .pyc files?
...ed by Python's virtual machine.
Python's documentation explains the definition like this:
Python is an interpreted language, as
opposed to a compiled one, though the
distinction can be blurry because of
the presence of the bytecode compiler.
This means that source files can be
run di...
MySQL high CPU usage [closed]
...ondly I'd say you want to double check your MySQL users, just to make sure it's not possible for anyone to be connecting from a remote server. This is also a major security thing to check.
Thirdly I'd say you want to turn on the MySQL Slow Query Log to keep an eye on any queries that are taking a l...
Difference between sh and bash
When writing shell programs, we often use /bin/sh and /bin/bash . I usually use bash , but I don't know what's the difference between them.
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How to disable all caps menu titles in Visual Studio
I assume the title is self explanatory. Just want to change the look of the Visual Studio 2012 not to show menu title in all capital letters.
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Why is (object)0 == (object)0 different from ((object)0).Equals((object)0)?
...y different methods.
The == case will bind to the static reference equality operator. There are 2 independent boxed int values created hence they are not the same reference.
In the second case you bind to the instance method Object.Equals. This is a virtual method which will filter down to Int...
What is the difference between Bower and npm?
...ge managers have many downsides. You just have to pick which you can live with.
History
npm started out managing node.js modules (that's why packages go into node_modules by default), but it works for the front-end too when combined with Browserify or webpack.
Bower is created solely for the fron...
What does the “===” operator do in Ruby? [duplicate]
I've seen it used a few times lately but can't figure out what it does. Can anyone illustrate how it works?
3 Answers
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Is it possible to specify a different ssh port when using rsync?
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Although this isn't the most obvious answer it is still a very good answer. It's worth using SSH config for any host you connect to more than once or twice as it'll save you a lot of thinking and typing.
– John Hunt
Apr 28 '14 at ...