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Difference between == and ===
...tical to"
Long Answer:
Classes are reference types, it is possible for multiple constants and variables to refer to the same single instance of a class behind the scenes. Class references stay in Run Time Stack (RTS) and their instances stay in Heap area of Memory. When you control equality with =...
How do I remove all non alphanumeric characters from a string except dash?
...Here is one solution
char[] arr = str.ToCharArray();
arr = Array.FindAll<char>(arr, (c => (char.IsLetterOrDigit(c)
|| char.IsWhiteSpace(c)
|| c == '-')));
str = new string(arr);
When using the compact framework (whi...
ImportError: DLL load failed: %1 is not a valid Win32 application. But the DLL's are there
...ected "cv2.pyd" file in an Anaconda DLL directory that wasn't touched by multiple uninstall/install attempts. Python was looking there first and not finding my good installation. I deleted that cv2.pyd file and tried imp.find_module("cv2") again and python immediately found the right file and cv2 st...
How do I check if a type provides a parameterless constructor?
...
There's a caveat for value types, which aren't allowed to have a default constructor. You can check if you have a value type using the Type.IsValueType property, and create instances using Activator.CreateInstance(Type);
...
Get the first element of an array
...
I get this: <b>Strict Standards</b>: Only variables should be passed by reference. Nice workaround btw
– Simone
Mar 21 '12 at 13:55
...
Check if a string contains one of 10 characters
...where, and how often the method is going to be called.
EDIT: Here's an alternative to Reed Copsey's method for finding out if a string contains exactly one of the characters.
private static readonly HashSet<char> Punctuation = new HashSet<char>("*&#...");
public static bool Cont...
Get size of an Iterable in Java
...ble, check this and call size() in case:
if (values instanceof Collection<?>) {
return ((Collection<?>)values).size();
}
// use Iterator here...
The call to size() will usually be much faster than counting the number of elements, and this trick is exactly what Iterables.size(Iterabl...
How do you create a REST client for Java? [closed]
...nfortunately Jersey client does not support PATCH method if used with JDK < 8
– botchniaque
Dec 18 '14 at 12:16
3
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Once upon a time, when > was faster than < … Wait, what?
...wise, flipping the sign of Z and the depth test is nothing but changing a < comparison to a > comparison. So, if I understand correctly and the author isn't lying or making things up, then changing < to > used to be a vital optimization for many games.
I didn't explain that particularl...
HTML text-overflow ellipsis detection
...gest fan of solutions like this, but it certainly produces the correct result time and time again.
The idea is that you clone the element, remove any bounding width, and test if the cloned element is wider than the original. If so, you know it's going to have been truncated.
For example, using jQ...