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INSERT IF NOT EXISTS ELSE UPDATE?
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edited Jul 2 '14 at 6:34
answered Sep 3 '10 at 10:55
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Is there a way to auto-adjust Excel column widths with pandas.ExcelWriter?
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12 Answers
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“Inner exception” (with traceback) in Python?
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Python 2
It's simple; pass the traceback as the third argument to raise.
import sys
class MyException(Exception): pass
try:
raise TypeError("test")
except TypeError, e:
raise MyException(), None, sys.exc_info()[2]
Alway...
Android. WebView and loadData
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207
myWebView.loadData(myHtmlString, "text/html; charset=UTF-8", null);
This works flawlessly, e...
How do you run a single test/spec file in RSpec?
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edited May 5 '12 at 4:13
Ray Baxter
2,9962020 silver badges2323 bronze badges
answered Sep 27...
How to map atan2() to degrees 0-360
atan2(y, x) has that discontinuity at 180° where it switches to -180°..0° going clockwise.
15 Answers
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Call by name vs call by value in Scala, clarification needed
... => Int).
def callByValue(x: Int) = {
println("x1=" + x)
println("x2=" + x)
}
def callByName(x: => Int) = {
println("x1=" + x)
println("x2=" + x)
}
Now what happens when we call them with our side-effecting function?
scala> callByValue(something())
calling something
x1=1
x2=1
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How to check if type of a variable is string?
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20 Answers
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Bitwise operation and usage
... the lower 4 bits of an integer, you AND it with 15 (binary 1111) so:
201: 1100 1001
AND 15: 0000 1111
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IS 9 0000 1001
The zero bits in 15 in that case effectively act as a filter, forcing the bits in the result to be zero as well.
In addition, >> and << ar...
Does JavaScript guarantee object property order?
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12 Answers
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