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How can you undo the last git add?
...nch, some staged, some not. At some point, some foolish programmer accidentally executed:
9 Answers
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What's wrong with using $_REQUEST[]?
...a number of posts on here saying not to use the $_REQUEST variable. I usually don't, but sometimes it's convenient. What's wrong with it?
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Initializing C# auto-properties [duplicate]
...tring Bar { get; set; } = "bar";
}
You can also write read-only automatically-implemented properties, which are only writable in the constructor (but can also be given a default initial value:
public class Foo
{
public string Bar { get; }
public Foo(string bar)
{
Bar = bar;
...
How do I expire a PHP session after 30 minutes?
...ms with filesystems where atime tracking is not available.
So it additionally might occur that a session data file is deleted while the session itself is still considered as valid because the session data was not updated recently.
And second:
session.cookie_lifetime
session.cookie_lifetime ...
How can I create an object and add attributes to it?
...ant to make a "bunch class", a very simple one already exists in Python -- all functions can have arbitrary attributes (including lambda functions). So, the following works:
obj = someobject
obj.a = lambda: None
setattr(obj.a, 'somefield', 'somevalue')
Whether the loss of clarity compared to the...
Most efficient way to remove special characters from string
I want to remove all special characters from a string. Allowed characters are A-Z (uppercase or lowercase), numbers (0-9), underscore (_), or the dot sign (.).
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git: How to ignore all present untracked files?
Is there a handy way to ignore all untracked files and folders in a git repository?
(I know about the .gitignore .)
8 An...
Is there a way to make a DIV unselectable?
...t here: msdn.microsoft.com/en-us/library/hh801966(v=vs.85).aspx But I actually tested on IE, and it works correctly.
– KimKha
May 1 '13 at 15:27
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总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...
... {
public:
int x;
CBaseX() { x = 10; }
void foo() { printf("CBaseX::foo() x=%d/n", x); }
};
class CBaseY
{
public:
int y;
int* py;
CBaseY() { y = 20; py = &y; }
void bar() { printf("CBaseY::bar() y=%d,...
Is it possible to “await yield return DoSomethingAsync()”
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What you are describing can be accomplished with the Task.WhenAll method. Notice how the code turns into a simple one-liner. What happens is that each individual url begins downloading and then WhenAll is used combine those operations into a single Task which can be awaited.
Task<IE...