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What is the difference between Class.this and this in Java
...that needs to refer to its outer class's instance.
class Person{
String name;
public void setName(String name){
this.name = name;
}
class Displayer {
String getPersonName() {
return Person.this.name;
}
}
}
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How to detect IE11?
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IE11 no longer reports as MSIE, according to this list of changes it's intentional to avoid mis-detection.
What you can do if you really want to know it's IE is to detect the Trident/ string in the user agent if navigator.appName retur...
How do you run a crontab in Cygwin on Windows?
Some cygwin commands are .exe files, so you can run them with the standard Windows Scheduler, but others don't have an .exe extension so can't be run from DOS (it seems like).
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How can I convert an RGB image into grayscale in Python?
I'm trying to use matplotlib to read in an RGB image and convert it to grayscale.
12 Answers
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Internal typedefs in C++ - good style or bad style?
Something I have found myself doing often lately is declaring typedefs relevant to a particular class inside that class, i.e.
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Why does integer overflow on x86 with GCC cause an infinite loop?
The following code goes into an infinite loop on GCC:
6 Answers
6
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Painless way to install a new version of R?
Andrew Gelman recently lamented the lack of an easy upgrade process for R (probably more relevant on Windows than Linux). Does anyone have a good trick for doing the upgrade, from installing the software to copying all the settings/packages over?
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How do I calculate percentiles with python/numpy?
Is there a convenient way to calculate percentiles for a sequence or single-dimensional numpy array?
11 Answers
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float64 with pandas to_csv
I'm reading a CSV with float numbers like this:
2 Answers
2
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Can I add extension methods to an existing static class?
I'm a fan of extension methods in C#, but haven't had any success adding an extension method to a static class, such as Console.
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