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How to Sort a List by a property in the object
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One must first test for null on the as cast. Which is the whole point of as, as (ha, ha) (Order)obj throws an exception when it fails. if(orderToCompare == null) return 1;.
– radarbob
Oct 16 '14 at 14:30
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PHP case-insensitive in_array function
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@DarrenCook as far as i know a bool cast would also work (bool)preg_grep('/^'.preg_quote($needle).'$/',$a), as an empty array would cast to false
– arraintxo
Apr 9 '13 at 12:20
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JavaScript function similar to Python range()
...like: if (stop === undefined) { 3 equals signs is compare without auto casting. compare as is also compare type. 2 equal signs is compare with auto casting to other side type.
– Shimon Doodkin
Mar 27 '18 at 12:48
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Why are Subjects not recommended in .NET Reactive Extensions?
...ach, or for simple cases, you could use something like Observable.Interval.Select(_ => <db fetch>). You may want to use DistinctUntilChanged() to prevent publishing updates when nothing has changed in the source data.
The source of data is some kind of asynchronous api that calls your callb...
Convert interface{} to int
I'm trying to get a value from a JSON and cast it to int but it doesn't work, and I don't know how to do it properly.
10 An...
Get nth character of a string in Swift programming language
...t libraries and system
components. The correct interpretation should be selected
according to the use case and the APIs involved, so String
cannot be subscripted with an integer.
Swift provides several different ways to access the character
data stored inside strings.
String.ut...
Fast ceiling of an integer division in C / C++
...promote the arguments into long long's? And doesn't that cost anything, up-casting or down-casting?
– einpoklum
Feb 13 '16 at 20:51
1
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Why array implements IList?
... (and transitively, ICollection) simplified the Linq2Objects engine, since casting the IEnumerable to IList/ICollection would also work for arrays.
For example, a Count() ends up calling the Array.Length under-the-hood, since it's casted to ICollection and the array's implementation returns Length...
What is move semantics?
I just finished listening to the Software Engineering radio podcast interview with Scott Meyers regarding C++0x . Most of the new features made sense to me, and I am actually excited about C++0x now, with the exception of one. I still don't get move semantics ... What is it exactly?
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What should I do if two libraries provide a function with the same name generating a conflict?
...ULE lib = LoadLibrary("foo.dll");
void *p = GetProcAddress(lib, "bar");
// cast p to the approriate function pointer type (fp) and call it
(*fp)(arg1, arg2...);
FreeLibrary(lib);
would get the address of a function named bar in foo.dll and call it.
I know Unix systems support similar functionalit...