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Concatenate two string literals
I am reading Accelerated C++ by Koenig. He writes that "the new idea is that we can use + to concatenate a string and a string literal - or, for that matter, two strings (but not two string literals).
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How to access the ith column of a NumPy multidimensional array?
...exing) of the NumPy reference. This is quick, at least in my experience. It's certainly much quicker than accessing each element in a loop.
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Extract public/private key from PKCS12 file for later use in SSH-PK-Authentication
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edited Oct 27 '17 at 2:23
Franklin Yu
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How to have a default option in Angular.js select box
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You can simply use ng-init like this
<select ng-init="somethingHere = options[0]"
ng-model="somethingHere"
ng-options="option.name for option in options">
</select>
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How do you rotate a two dimensional array?
...ired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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grep using a character vector with multiple patterns
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In addition to @Marek's comment about not including fixed==TRUE, you also need to not have the spaces in your regular expression. It should be "A1|A9|A6".
You also mention that there are lots of patterns. Assuming that they ar...
Member '' cannot be accessed with an instance reference
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In C#, unlike VB.NET and Java, you can't access static members with instance syntax. You should do:
MyClass.MyItem.Property1
to refer to that property or remove the static modifier from Property1 (which is what you probably want to do). For a conceptual idea about what static is, see m...
How to make --no-ri --no-rdoc the default for gem install?
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You just add the following line to your local ~/.gemrc file (it is in your home folder):
gem: --no-document
or you can add this line to the global gemrc config file.
Here is how to find it (in Linux):
strace gem source 2>&1 | grep gemrc
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How can I decode HTML characters in C#?
I have email addresses encoded with HTML character entities. Is there anything in .NET that can convert them to plain strings?
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Among $_REQUEST, $_GET and $_POST which one is the fastest?
...ST, by default, contains the contents of $_GET, $_POST and $_COOKIE.
But it's only a default, which depends on variables_order ; and not sure you want to work with cookies.
If I had to choose, I would probably not use $_REQUEST, and I would choose $_GET or $_POST -- depending on what my applicati...