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When should I use UNSIGNED and SIGNED INT in MySQL?
...http://dev.mysql.com/doc/refman/5.6/en/integer-types.html
UNSIGNED ranges from 0 to n, while signed ranges from about -n/2 to n/2.
In this case, you have an AUTO_INCREMENT ID column, so you would not have negatives. Thus, use UNSIGNED. If you do not use UNSIGNED for the AUTO_INCREMENT column, your...
GitHub: Reopening a merged pull request
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Just derive a new branch from the existing branch where you have done extra 1 commit. From there submit the pull request.
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What are static factory methods?
...e(). The constructors are marked private, so they cannot be called except from inside the class, and the factory method is marked as static so that it can be called without first having an object.
There are a few advantages to this pattern. One is that the factory can choose from many subclasses ...
Sort a list by multiple attributes?
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For completeness from timeit: for me first gave 6 us per loop and the second 4.4 us per loop
– Brian Larsen
Feb 8 '13 at 21:52
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What does default(object); do in C#?
...d to zero or null depending on whether they are value or reference types.
from MSDN
Simple Sample code :<br>
class Foo
{
public string Bar { get; set; }
}
struct Bar
{
public int FooBar { get; set; }
public Foo BarFoo { get; set; }
}
publ...
Creating an instance of class
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Allocates some dynamic memory from the free store, and creates an object in that memory using its default constructor. You never delete it, so the memory is leaked.
Does exactly the same as 1; in the case of user-defined types, the parentheses are optiona...
How to check iOS version?
...eck if UIPopoverController is available on the current device using NSClassFromString:
if (NSClassFromString(@"UIPopoverController")) {
// Do something
}
For weakly linked classes, it is safe to message the class, directly. Notably, this works for frameworks that aren't explicitly linked as "...
How do I step out of a loop with Ruby Pry?
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To exit Pry unconditionally, type
exit-program
Edit from @Nick's comment: Also works:
!!!
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PhoneGap Eclipse Issue - eglCodecCommon glUtilsParamSize: unknow param errors
...to the "by Log Tag (regex)" field in order to strip out the unwanted lines from the Logcat output.
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How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]
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As from python 3.7 you can use datetime.datetime.fromisoformat docs.python.org/3/library/…
– Yuri Ritvin
Sep 17 '18 at 14:15
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