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Removing carriage return and new-line from the end of a string in c#
...it over my string twice - once for when '\n' was at the end and the second time for when '\r' was at the end (now that the '\n' was removed).
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Converting datetime.date to UTC timestamp in Python
I am dealing with dates in Python and I need to convert them to UTC timestamps to be used
inside Javascript. The following code does not work:
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How do I sort a dictionary by value?
...ey, d[key]) ----- -> b: 1 c: 5 a: 7 d: 3 The results change each time I run the code: weird. (sorry, can't get the code to display properly)
– bli
Aug 13 '14 at 15:58
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Listing all permutations of a string/integer
...t to explain it human language. I think recursion is very easy most of the times. You only have to grasp two steps:
The first step
All the other steps (all with the same logic)
In human language:
In short:
The permutation of 1 element is one element.
The permutation of a set of elements is a lis...
How do I look inside a Python object?
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I agree with usuallyuseless. A lot of the time, a simple call to dir() will suffice, thus saving you the trouble of having to look through the source code.
– Sasha Chedygov
Jun 18 '09 at 0:13
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Is there a way to 'uniq' by column?
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This approach is two times faster than sort
– bitek
Feb 17 '15 at 21:12
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Why does datetime.datetime.utcnow() not contain timezone information?
Why does this datetime not have any timezone info given that it is explicitly a UTC datetime ?
9 Answers
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Contains method for a slice
...le, that's true. But what it takes to add such basic functionality into runtime? I haven't found such issues in Go repo on github. That's sad and strange.
– Igor Petrov
May 23 '17 at 6:06
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Cast Int to enum in Java
...to cache MyEnum.values() as its expensive. i.e. if you call it hundreds of times.
– Peter Lawrey
May 4 '11 at 7:27
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Fastest way to tell if two files have the same contents in Unix/Linux?
...There is no alternative. So creating hashes or checksums at some point in time requires reading the whole file. Big files take time.
File metadata retrieval is much faster than reading a large file.
So, is there any file metadata you can use to establish that the files are different?
File size ? ...