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Should I Stop Stopwatch at the end of the method?
...ork, Mono, .NET Core), it just calls the QueryPerformanceCounter() Windows API when needed (on Start() and Stop() and when reading Elapsed) to retrieve a high resolution time stamp.
In Linux implementations of Mono and .NET Core, it uses clock_gettime function to retrieve a monotonic increasing tim...
Confusion between numpy, scipy, matplotlib and pylab
...tlib is the name of the python plotting library.
Pyplot is an interactive api for matplotlib, mostly for use in notebooks like jupyter. You generally use it like this: import matplotlib.pyplot as plt.
Pylab is the same thing as pyplot, but with extra features (its use is currently discouraged).
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Uses for the Java Void Reference Type?
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Before generics, it was created for the reflection API, to hold TYPE returned by Method.getReturnType() for a void method, corresponding to the other primitive type classes.
EDIT: From the JavaDoc of Void: "The Void class is an uninstantiable placeholder class to hold a refe...
Number of lines in a file in Java
... readLine() repeatedly anyway (since that will be optimized towards by the API).
– wds
Jan 17 '09 at 13:23
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What is the worst real-world macros/pre-processor abuse you've ever come across?
...InterlockedIncrement is normally an atomic function defined in the Windows API. So when people call InterlockedIncrement, they expect to call into a function that is guaranteed to be executed atomically. Instead, someone defined a macro with the same name, which evaluates to a plain, non-atomic incr...
In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?
...n find more formats and context on how to create a custom one in the Rails API docs.
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Changing Java Date one hour back
... Java SE 9, Java SE 10, Java SE 11, and later - Part of the standard Java API with a bundled implementation.
Java 9 adds some minor features and fixes.
Java SE 6 and Java SE 7
Most of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
Android
Later versions o...
html5 - canvas element - Multiple layers
...e by using html elements to draw something in the first place. Because our api returned x,y,width and height, we moved to jscanavs to draw the image instead of using html elements. Mind you we did have couple of issues with rotation (starting points were a bit awkward and unpredictable) and applying...
Why do people still use primitive types in Java?
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@MrBackend: when the List API was designed, neither Generics nor Autoboxing existed, so there was no chance of mixing up remove(int) and remove(Object)…
– Holger
Jul 21 '15 at 10:22
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RSpec: What is the difference between a feature and a request spec?
...nked post clearly describes the differences. Use request specs to test via API, use feature specs to test via frontend.
– Damien Roche
May 14 '14 at 9:18
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