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Boolean.hashCode()
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Suppose for a second that we picked composite numbers (non-primes), say 1000 and 2000. When inserting booleans into a hash table, true and false would go into bucket 1000 % N resp 2000 % N (where N is the number of buckets).
Now notice that
1000 % 8 same bucket as 2000 % 8
1000 % 10 same buck...
select and update database record with a single queryset
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edited Aug 14 at 5:07
Adolfo
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iOS: Compare two dates
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210
According to Apple documentation of NSDate compare:
Returns an NSComparisonResult value that...
Best way to reverse a string
I've just had to write a string reverse function in C# 2.0 (i.e. LINQ not available) and came up with this:
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Python group by
Assume that I have a set of data pair where index 0 is the value and index 1 is the type:
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What is & used for
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130
& is HTML for "Start of a character reference".
& is the character reference for "A...
How to find out which processes are using swap space in Linux?
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Run top then press OpEnter. Now processes should be sorted by their swap usage.
Here is an upd...
How to change the default font size in ggplot2
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Use theme_set()
theme_set(theme_gray(base_size = 18))
qplot(1:10, 1:10)
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How exactly does a generator comprehension work?
... # notice it's a generator object
<generator object <genexpr> at 0x7f2ad75f89e0>
>>> len(filtered_gen) # So technically, it has no length
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: object of type 'generator' has no len()
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pip broke. how to fix DistributionNotFound error?
...wPtoneNewPtone
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