大约有 30,000 项符合查询结果（耗时：0.0884秒） [XML]
php - get numeric index of associative array
...
While Fosco's answer is not wrong there is a case to be considered with this one: mixed arrays. Imagine I have an array like this:
$a = array(
"nice",
"car" => "fast",
"none"
);
Now, PHP allows this kind of syntax but it has one problem: if I run Fosco's code I get 0 which...
Time complexity of Euclid's Algorithm
... is O(lg[4/3](A+B))
S is O(lg(A+B))
S is O(lg(A*B)) //because A*B asymptotically greater than A+B
S is O(lg(A)+lg(B))
//Input size N is lg(A) + lg(B)
S is O(N)
So the number of iterations is linear in the number of input digits. For numbers that fit into cpu registers, it's reasonable to model the...
Iteration over std::vector: unsigned vs signed index variable
...
A call to vector<T>::size() returns a value of type std::vector<T>::size_type, not int, unsigned int or otherwise.
Also generally iteration over a container in C++ is done using iterators, like this.
std::vector&l...
Submit jQuery UI dialog on
...ened, which means if the dialog is opened twice, the event handler will be called twice.
– Elezar
Apr 29 '14 at 23:32
|
show 9 more comments...
How to handle WndProc messages in WPF?
...set { this.SetValue(IsAppAskCloseProperty, value); }
}
// called when the behavior is attached
// hook the wndproc
protected override void OnAttached()
{
base.OnAttached();
AssociatedObject.Loaded += (s, e) =>
{
...
Count how many files in directory PHP
...
to get rid of the . and .. try this: $files = array_diff( scandir("/dir"), array(".", "..") );
– JKirchartz
Oct 9 '12 at 13:48
...
How to create .ipa file using Xcode?
...
Thanks @coder. Did it.
– Franky
Mar 16 '19 at 15:54
...
Why is using “for…in” for array iteration a bad idea?
...
Historically, some browsers even iterated over 'length', 'toString' etc.!
– bobince
Feb 1 '09 at 12:14
400
...
Redirect stderr and stdout in Bash
...
@Daniel, but this question is specifically about bash
– John La Rooy
Aug 19 '13 at 3:38
3
...
How to convert SecureString to System.String?
...
@radbyx In a quick and dirty test setup, I can call it 1000 times in 76ms. The first invocation takes 0.3 ms and subsequent invocations ~0.07ms. How large is your secure string and which version of the framework are you using?
– Rasmus Faber
...