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Is there shorthand for returning a default value if None in Python? [duplicate]
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return "default" if x is None else x
try the above.
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
...ou will have typically have 1-8 cache locations for all of these. Thus almost all of those accesses will trigger an L1 cache eviction, and fetching of data from a slower cache or main memory.
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Changing column names of a data frame
...k it was asked for data.frame, not data.table
– Helix123
Apr 16 '15 at 19:15
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Fragment lifecycle - which method is called upon show / hide?
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Similar to activity lifecycle, Android calls onStart() when fragment becomes visible. onStop()...
How to suppress scientific notation when printing float values?
...s really what you want? I don't: >>> print('{:f}'.format(0.000000123)) 0.000000
– duality_
May 22 '18 at 10:06
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In Docker, what's the difference between a container and an image? [duplicate]
...ated an instance from a Ubuntu image. So this Ubuntu is what people call "Host OS"? Let's say my system is running on CentOS. That's not the Host OS, correct? Also, will each container take copy of the Ubuntu image? I'm guessing no copy will be created because it will be heavy just like VMs.
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Java: parse int value from a char
...n be converted into int(0 to 9), e.g., '5'-'0' gives int 5.
String str = "123";
int a=str.charAt(1)-'0';
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How to stop and restart memcached server?
How to stop and restart memcached server 1.4.5 in linux OS from command line?
12 Answers
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How can Xcode 6 adaptive UIs be backwards-compatible with iOS 7 and iOS 6?
...e to the UI with Size Classes in Interface Builder DO appear correctly on iOS 7 devices and the Preview in Xcode. For example, I changed some Auto Layout constraints and font sizes for Regular height Regular width and those changed constraints are visible in the iPad Simulator running iOS 7.0.
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