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Differences between Java 8 Date Time API (java.time) and Joda-Time
...er to use getDayOfYear() instead of get(DAY_OF_YEAR). This causes a lot of extra methods compared with java.util.Calendar (although latter is not type-safe at all due to excessive use of ints).
Performance
See the other answer by @OO7 pointing to the analysis of Mikhail Vorontsov although point 3 ...
Convert InputStream to byte array in Java
...lass DataInputStream is primary used to read primary types (Longs, Shorts, Chars...) from a stream, so we can see this usage as a misuse of the class.
– Olivier Faucheux
Apr 8 '15 at 11:51
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What is the difference between Cloud, Grid and Cluster? [closed]
...s to take as much hardware as possible (for example in the hope of finding extra-terrestrial intelligence).
Cluster: this is an old term referring to one OS instance or one DB instance installed across multiple machines. It was done with special OS handling, proprietary drivers, low latency network...
Invalid postback or callback argument. Event validation is enabled using '
...
The problem is that ASP.NET does not get to know about this extra or removed listitem.
You got an number of options (listed below):
Disable eventvalidation (bad idea, because you lose a little of security that come with very little cost).
Use ASP.NET Ajax UpdatePanel. (Put the listb...
How to get the difference between two arrays of objects in JavaScript
...ric difference of the two lists by applying the predicate appropriately. (Extra points if it were more efficient than having to run through all m * n comparisons twice!)
– Scott Sauyet
Feb 24 '14 at 12:55
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Which C++ idioms are deprecated in C++11?
...loop. The code looks more or less the same, but the lambda introduces some extra punctuation. You can use equivalents of things like boost::irange to apply it to more loops than just those that obviously use iterators. Plus the range-based for loop has greater flexibility, in that you can exit early...
Permutations in JavaScript?
...
usedChars.pop();
}
return permArr
};
document.write(JSON.stringify(permute([5, 3, 7, 1])));
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Why should I avoid std::enable_if in function signatures
...lity: constructors don't have return types, and some operators cannot have extra arguments, so neither of the other two options can be applied everywhere. Putting enable_if in a template parameter works everywhere since you can only use SFINAE on templates anyway.
For me, the readability aspect is...
Unique BooleanField value in Django?
..., self).save(*args, **kwargs)
@Ellis Percival: Hits the database only one extra time and accepts the current entry as the chosen one. Clean and elegant.
from django.db import transaction
class Character(models.Model):
name = models.CharField(max_length=255)
is_the_chosen_one = models.Bool...
Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
...ept over if/else if that results in
speed-ups (for example by preventing extra lookups)
cleaner code (fewer lines/easier to read)
Often, these go hand-in-hand.
speed-ups
In the case of trying to find an element in a long list by:
try:
x = my_list[index]
except IndexError:
x = 'NO_AB...