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Rails :include vs. :joins
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@JonathanSwartz Looks like new version Rails support this using eagerload. Thanks for the link NathanLong
– rubyprince
May 12 '17 at 7:11
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Should C# methods that *can* be static be static? [closed]
...alls, and say "ok... I better not change this method, but instead create a new one that does what I need".
That can result in either:
A lot of code duplication
An explosion in the number of method arguments
Both of those things are bad.
So, my advice would be that if you have a code base over ...
Is it better to call ToList() or ToArray() in LINQ queries?
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@ScottRippey I just looked up the source of new List from IEnumerable source, and it checks if the IEnumerable is an ICollection, and if it is, then it starts out by allocating one array with the exact size needed from the Count property, so this would be the case wher...
Converting JavaScript object with numeric keys into array
...n we can use array.map to replace each key by the corresponding value in a new array.
– antoine
Jun 19 '15 at 22:12
1
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Can a dictionary be passed to django models on create?
...e not used the objects.create method before, so you've taught me something new.
– Alasdair
Oct 15 '09 at 14:13
2
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How do HashTables deal with collisions?
I've heard in my degree classes that a HashTable will place a new entry into the 'next available' bucket if the new Key entry collides with another.
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What is the worst gotcha in C# or .NET? [closed]
... ThreadStart ts = delegate { Console.WriteLine(i); };
new Thread(ts).Start();
}
}
}
What will that print out? Well, it entirely depends on the scheduling. It will print 10 numbers, but it probably won't print 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 which is what you might exp...
Using scp to copy a file to Amazon EC2 instance?
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CSS: center element within a element
... display: -ms-flexbox; /* TWEENER - IE 10 */
display: -webkit-flex; /* NEW - Safari 6.1+. iOS 7.1+, BB10 */
display: flex; /* NEW, Spec - Firefox, Chrome, Opera */
justify-content: center;
align-items: center;
width: 400px;
height: 200px;
background-color: #3498db;
}
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C# 'is' operator performance
... i++)
{
MyBaseClass a;
if (i % 2 == 0)
a = new MyClassA();
else
a = new MyClassB();
bool b = a is MyClassB;
}
DateTime end = DateTime.Now;
Console.WriteLine("Is test {0} miliseconds", (end - start).TotalMilliseconds);
}
Runnin...