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Studies on optimal code width?
...k. A screen is typically not placed at the distance of a book, which means more characters per line can be used while keeping within the limits of the maximum eye angle. Also, code isn't read as much as it is perused, making this width less important. I (YMMV) can easily follow lines with 120 charac...
Learn C first before learning Objective-C [closed]
...t better thanks to objects (OOP programming can make complex programs much more lovely than functional programming; polymorphism for example is a brilliant feature)... and I really like Obj-C (much more than C++! I hate the C++ syntax and some language features are plain overkill and lead to bad de...
On design patterns: When should I use the singleton?
...ators and client side UI's also being possibly "acceptable" choices.
Read more at Singleton I love you, but you're bringing me down.
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Build query string for System.Net.HttpClient get
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http://example.com/?foo=bar%3c%3e%26-baz&bar=bazinga
that you could more than safely feed to your HttpClient.GetAsync method.
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What is the “-->” operator in C++?
...enced by the fact the question was asked in the first place. It makes much more sense to textually bind operators to the thing they're operating on rather than something unrelated, so while (x-- > 0) would be more apt. It also makes it more obvious what's going on (at least in a fixed-font editor...
Manually raising (throwing) an exception in Python
...d raising a generic Exception. To catch it, you'll have to catch all other more specific exceptions that subclass it.
Problem 1: Hiding bugs
raise Exception('I know Python!') # Don't! If you catch, likely to hide bugs.
For example:
def demo_bad_catch():
try:
raise ValueError('Repres...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
...ocess has multiple threads (and this process is running on a computer with more than one processor) it could potentially exceed the wall clock time reported by Real (which usually occurs). Note that in the output these figures include the User and Sys time of all child processes (and their descenda...
How do I use Assert to verify that an exception has been thrown?
...string that needs to matcvh the exception message (and IU think that makes more sense)
– Ruben Bartelink
Jun 25 '09 at 10:48
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difference between primary key and unique key
...rimary Key is a unique key identifier of the record
Unique Key:
Can be more than one unique key in one table
Unique key can have NULL values
It can be a candidate key
Unique key can be NULL ; multiple rows can have NULL values and therefore may not be considered "unique"
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What are the differences between Chosen and Select2?
Chosen and Select2 are the two more popular libraries for extending selectboxes.
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