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How to check file MIME type with javascript before upload?
.../jpeg
image/png
...
Caveat: The MIME type is detected from the file extension and can be fooled or spoofed. One can rename a .jpg to a .png and the MIME type will be be reported as image/png.
✓ Proper header-inspecting method
To get the bonafide MIME type of a client-side file we can go ...
Generate random numbers using C++11 random library
...erating system (which will source from various locations, like RdRand for example).
Looking at this question / answer, it appears that uniform_real_distribution returns a number in the range [a, b), where you want [a, b]. To do that, our uniform_real_distibution should actually look like:
std::u...
Is PowerShell ready to replace my Cygwin shell on Windows? [closed]
...her I should learn PowerShell, or just stick with Cygwin /Perl scripts/Unix shell scripts, etc.
18 Answers
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JavaFX and OpenJDK
I'm trying to decide whether I could switch to JavaFX for the user interface of my Java application. Most of my users would be using the Oracle JRE, which has JavaFX integrated these days. However, some are using OpenJDK (on linux). This (old) question suggests that OpenJDK deals very badly with J...
In C#, why is String a reference type that behaves like a value type?
...lue type such as being immutable and having == overloaded to compare the text rather than making sure they reference the same object.
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Mongodb Explain for Aggregation framework
Is there an explain function for the Aggregation framework in MongoDB? I can't see it in the documentation.
3 Answers
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Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?
...t to the package's \lib\ folder, with the right subfolder (\lib\net40 for example)
Content files are copied from the packages \content\ folder, with the right subfolder (\content\net40 for example)
We record the targetFramework used to install the package within the packages.config file
After you ch...
Check if at least two out of three booleans are true
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What is exactly the base pointer and stack pointer? To what do they point?
Using this example coming from wikipedia, in which DrawSquare() calls DrawLine(),
8 Answers
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What is a “thread” (really)?
... includes the Instruction Pointer (aka Program Counter), it controls what executes in what order. It also includes the Stack Pointer, which had better point to a unique area of memory for each thread or else they will interfere with each other.
Threads are the software unit affected by control flo...