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How to create a new java.io.File in memory?
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haraldKharaldK
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What is the best way to create constants in Objective-C
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2 Answers
2
Active
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How to override to_json in Rails?
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216
You are getting ArgumentError: wrong number of arguments (1 for 0) because to_json needs to be...
Why does this (null || !TryParse) conditional result in “use of unassigned local variable”?
... repro:
class Program
{
static bool M(out int x)
{
x = 123;
return true;
}
static int N(dynamic d)
{
int y;
if(d || M(out y))
y = 10;
return y;
}
}
I see no reason why that should be illegal; if you replace dynamic w...
How to push new branch without history
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Sep 22 '12 at 11:32
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Why Func instead of Predicate?
...introduced at the same time that List<T> and Array<T>, in .net 2.0, the different Func and Action variants come from .net 3.5.
So those Func predicates are used mainly for consistency in the LINQ operators. As of .net 3.5, about using Func<T> and Action<T> the guideline stat...
Using a ListAdapter to fill a LinearLayout inside a ScrollView layout
...w(item);
}
EDIT: I rejected this approach when I needed to display about 200 non-trivial list items, it is very slow - Nexus 4 needed about 2 seconds to display my "list", that was unacceptable. So I turned to Flo's approach with headers. It works much faster because list views are created on dema...
Is #pragma once part of the C++11 standard?
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2 Answers
2
Active
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How do I convert an integer to string as part of a PostgreSQL query?
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129
Because the number can be up to 15 digits, you'll meed to cast to an 64 bit (8-byte) integer. T...
What is a “Bitmap heap scan” in a query plan?
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122
The best explanation comes from Tom Lane, which is the algorithm's author unless I'm mistaking....