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What do the plus and minus signs mean in Objective-C next to a method?
...in Objective C is like this:
NSNumber *myNumber = [NSNumber numberWithInt:123];
which is calling the 'numberWithInt' class method of the NSNumber class, which is a 'factory' method (i.e. a method that provides you with a 'ready made instance' of an object).
Objective C also allows the creation o...
Calculate difference in keys contained in two Python dictionaries
... edited May 8 '13 at 14:35
Oz123
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answered Jul 22 '09 at 13:53
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How do you clear a slice in Go?
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It all depends on what is your definition of 'clear'. One of the valid ones certainly is:
sli...
Why is Double.MIN_VALUE in not negative
...g that. (Could have used a better name to avoid this confusion though)
123 > 10 > 1 > 0.12 > 0.012 > 0.0000123 > 0.000000001 > 0.0000000000000001
Below is just FYI.
Double-precision floating-point can represent 2,098 powers of two, from 2^-1074 through 2^1023. Denormalize...
Extract elements of list at odd positions
...it be enumerate(L) instead of enumerate(items) ?
– ab123
May 24 '18 at 5:38
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Choosing Java vs Python on Google App Engine
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I'm biased (being a Python expert but pretty rusty in Java) but I think the Python runtime of ...
Securing my REST API with OAuth while still allowing authentication via third party OAuth providers
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First I'd like to emphasize the difference between authentication and authorization:
A user a...
Converting between datetime, Timestamp and datetime64
....datetime64('2017-10-24T05:30:45.67') - np.datetime64('2017-10-22T12:35:40.123')
numpy.timedelta64(147305547,'ms')
Pandas Timestamp and Timedelta build much more functionality on top of NumPy
A pandas Timestamp is a moment in time very similar to a datetime but with much more functionality. You c...
Algorithm to return all combinations of k elements from n
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Usage:
var result = Combinations(new[] { 1, 2, 3, 4, 5 }, 3);
Result:
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Remove .php extension with .htaccess
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Gumbo's answer in the Stack Overflow question How to hide the .html extension with Apache mod_...