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Ternary Operator Similar To ?:
...lue a good pattern? to get
scala> "Hi".getClass.getSimpleName |> {x => x.endsWith("$") ? x.init | x}
res0: String = String
scala> List.getClass.getSimpleName |> {x => x.endsWith("$") ? x.init | x}
res1: String = List
Is this adequate for your needs?
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Node.js + Nginx - What now?
I've set up Node.js and Nginx on my server. Now I want to use it, but, before I start there are 2 questions:
12 Answers
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Maximum size of a element
I'm working with a canvas element with a height of 600 to 1000 pixels and a width of several tens or hundreds of thousands of pixels. However, after a certain number of pixels (obviously unknown), the canvas no longer display shapes I draw with JS.
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Apply pandas function to column to create multiple new columns?
...swer, you can do the assignment in one pass using df.merge:
df.merge(df.textcol.apply(lambda s: pd.Series({'feature1':s+1, 'feature2':s-1})),
left_index=True, right_index=True)
textcol feature1 feature2
0 0.772692 1.772692 -0.227308
1 0.857210 1.857210 -0.142790
2 0.065639 1.06563...
Fast Bitmap Blur For Android SDK
...ly in an Android application that I'm developing I'm looping through the pixels of an image to blur it. This takes about 30 seconds on a 640x480 image.
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How do I install Python OpenCV through Conda?
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Repeat String - Javascript
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I try not to extend native objects, but otherwise this is a beautiful solution. Thanks!
– brad
Oct 14 '08 at 20:22
34
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How is Math.Pow() implemented in .NET Framework?
..._Dbl_RetDbl, COMDouble::AbsDbl, CORINFO_INTRINSIC_Abs)
FCFuncElement("Exp", COMDouble::Exp)
FCFuncElement("Pow", COMDouble::Pow)
// etc..
FCFuncEnd()
Searching for "COMDouble" takes you to clr/src/classlibnative/float/comfloat.cpp. I'll spare you the code, just have a look for yourself....
Remove non-utf8 characters from string
... from string, which are not displaying properly. Characters are like this 0x97 0x61 0x6C 0x6F (hex representation)
18 Answe...
Why does the order of the loops affect performance when iterating over a 2D array?
Below are two programs that are almost identical except that I switched the i and j variables around. They both run in different amounts of time. Could someone explain why this happens?
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