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Why do all browsers' user agents start with “Mozilla/”?
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Mozilla and Firefox codebase was originally part of Netscape though. That's why many of Firefox internal APIs has "ns" as its prefix.
– Lie Ryan
Dec 10 '14 at 0:09
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Check if a given key already exists in a dictionary
I wanted to test if a key exists in a dictionary before updating the value for the key.
I wrote the following code:
16 Answ...
Where is Developer Command Prompt for VS2013?
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I used a modified version of this answer - based on my experiences adding it to VS 2010:
Select Tools >> External Tools in Visual Studio
Click Add
Title: I use Visual Studio Command &Prompt
&P Makes P a alt-shortcut key (when menu active)
I originall...
Bytes of a string in Java
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64
If you're running with 64-bit references:
sizeof(string) =
8 + // object header used by the V...
How do I use Notepad++ (or other) with msysgit?
...epad++/notepad++.exe' -multiInst -notabbar -nosession -noPlugin"
Or, for 64-bit Windows and a 32-bit install of Notepad++:
git config --global core.editor "'C:/Program Files (x86)/Notepad++/notepad++.exe' -multiInst -notabbar -nosession -noPlugin"
Or, the following can be issued on the command ...
Creating a comma separated list from IList or IEnumerable
...3539 Hz, Resolution=309.2587 ns, Timer=TSC
[Host] : Clr 4.0.30319.42000, 64bit RyuJIT-v4.6.1637.0
Clr : Clr 4.0.30319.42000, 64bit RyuJIT-v4.6.1637.0
Core : .NET Core 4.6.25009.03, 64bit RyuJIT
Method | Job | Runtime | Mean | Error | StdDev | Min | ...
Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
..., the floating point would have been next to useless. BCPL, on which C was based, also had no use for powers (it didn't have floating point at all, from memory).
As an aside, an integral power operator would probably have been a binary operator rather than a library call. You don't add two integ...
Is it possible to use argsort in descending order?
...ns, 1000000 loops each)
>>> timeit avgDists.argsort()[::-1][:n]
1.64 µs ± 3.39 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
>>> timeit avgDists.argsort()[-n:][::-1]
1.64 µs ± 3.66 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
For larger arrays...
Pry: show me the stack
...(method, *args)>
#2 [method] process_action <AbstractController::Base#process_action(method_name, *args)>
#3 [method] process_action <ActionController::Rendering#process_action(*arg1)>
<... clipped ...>
[2] pry(#<PostsController>)> up
Frame number: 1/64
Frame ...
Iterator Loop vs index loop [duplicate]
...nly one out of four distinct ways to iterate over a std::vector:
1) index-based iteration
for (std::size_t i = 0; i != v.size(); ++i) {
// access element as v[i]
// any code including continue, break, return
}
Advantages: familiar to anyone familiar with C-style code, can loop using dif...