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What is the relative performance difference of if/else versus switch statement in Java?
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Is there an R function for finding the index of an element in a vector?
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481
The function match works on vectors :
x <- sample(1:10)
x
# [1] 4 5 9 3 8 1 6 10 7 ...
What is the difference between require() and library()?
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How do you convert a time.struct_time object into a datetime object?
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389
Use time.mktime() to convert the time tuple (in localtime) into seconds since the Epoch, then u...
How do you round to 1 decimal place in Javascript?
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768
Math.round(num * 10) / 10 works, here is an example...
var number = 12.3456789
var rounded = Ma...
What does the [Flags] Enum Attribute mean in C#?
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The [Flags] attribute should be used whenever the enumerable represents a collection of possibl...
Detecting endianness programmatically in a C++ program
...ecture (fat binary on Mac os x for example), this will work for both ppc/i386, whereas it is very easy to mess things up otherwise.
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How to write a CSS hack for IE 11? [duplicate]
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How to avoid 'cannot read property of undefined' errors?
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Brandon Dyer
99088 silver badges1717 bronze badges
answered Feb 20 '17 at 16:23
strstr
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In Python, how do you convert seconds since epoch to a `datetime` object?
...output as with time.gmtime
>>> datetime.datetime.fromtimestamp(1284286794)
datetime.datetime(2010, 9, 12, 11, 19, 54)
or
>>> datetime.datetime.utcfromtimestamp(1284286794)
datetime.datetime(2010, 9, 12, 10, 19, 54)
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