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How much faster is C++ than C#?
...uestions like “how much faster” cannot be answered, not even by giving orders of magnitude.
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async await return Task
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In order to get proper responses back from async methods, you need to put await while calling those task methods. That will wait for converting it back to the returned value type rather task type.
E.g var content = await Str...
C# 'is' operator performance
... I will guarantee that whatever you're doing, you'll have bottlenecks many orders of magnitude larger than any performance degradation the is operator is causing you, and that the over heard of designing & coding around the is operator will cost a fortune in code quality and will ultimately be s...
How to check for a JSON response using RSpec?
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JSON is only a string, a sequence of characters and their order matters. {"a":"1","b":"2"} and {"b":"2","a":"1"} are not equal strings which notate equal objects. You should not compare strings but objects, do JSON.parse('{"a":"1","b":"2"}').should == {"a" => "1", "b" => "2"...
How do I rename the android package name? [duplicate]
... Worked for me (using Android Studio 0..9.1) but in reverse order. First moved the R.java class to the new package. Second step was to delete duplicate R.java (it appeared in source folder in the new package). And lastly, manually changed the package name in manifest file.
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How do I install a plugin for vim?
...ime files. You can see that set of directories via :set runtimepath?. In order to tell Vim to also look inside ~/.vim/vim-haml you'll want to add
set runtimepath+=$HOME/.vim/vim-haml
to your ~/.vimrc. You'll likely also want the following in your ~/.vimrc to enable all the functionality provid...
How to log source file name and line number in Python
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Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
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I had to install libxft-dev in order to enable matplotlib on ubuntu server 14.04.
sudo apt-get install libfreetype6-dev libxft-dev
And then I could use
sudo easy_install matplotlib
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What can MATLAB do that R cannot do? [closed]
...in a separate Fortran routine that did some intricate pointer juggling in order to manage the interface, I shelved MATLAB.
The R interface consists of calling .Fortran( [subroutine name], [argument list]) and is simply quicker and cleaner.
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Get type of a generic parameter in Java with reflection
...our generics.
Line 6 gets the array of types mapped into our generics, in order as declared in the class code. For this example we pull out the first parameter. This comes back as a Type.
Line 2 casts the final Type returned to a Class. This is safe because we know what types our generic type p...