大约有 48,000 项符合查询结果（耗时：0.0467秒） [XML]
Explanation of [].slice.call in javascript?
...ray, then iterate through the object it's running on (originally an array, now a NodeList) and keep appending the elements of that object to the empty array it created, which is eventually returned. Here's an article on this.
EDIT:
So it starts with an empty array [], then slice is used to
co...
What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
...ion outerFunction() {
function innerFunction() {
// code
}
}
Now you can call outerFunction(), but the visiblity of innerFunction() is limited to the scope of outerFunction(), meaning it is private to outerFunction(). It basically follows the same principle as variables in Javascript:
...
Should I instantiate instance variables on declaration or in the constructor?
...'s discussable: if you initialise all your fields in the constructor, you know exactly that when you are reading the code, you have just one place where to search...
– nbro
May 8 '15 at 10:42
...
What does iterator->second mean?
...
I'm sure you know that a std::vector<X> stores a whole bunch of X objects, right? But if you have a std::map<X, Y>, what it actually stores is a whole bunch of std::pair<const X, Y>s. That's exactly what a map is - it pai...
How to properly document S4 class slots using Roxygen2?
... answer for Roxygen2 5.0.1, current as of 6.0.1
For S4, the best practice now is documenting using the @slot tag:
#' The title for my S4 class that extends \code{"character"} class.
#'
#' Some details about this class and my plans for it in the body.
#'
#' @slot myslot1 A logical keeping track of ...
How to mock a final class with mockito
...
Mockito 2 now supports final classes and methods!
But for now that's an "incubating" feature. It requires some steps to activate it which are described in What's New in Mockito 2:
Mocking of final classes and methods is an incubating,...
Function that creates a timestamp in c#
...
//Find unix timestamp (seconds since 01/01/1970)
long ticks = DateTime.UtcNow.Ticks - DateTime.Parse("01/01/1970 00:00:00").Ticks;
ticks /= 10000000; //Convert windows ticks to seconds
timestamp = ticks.ToString();
Adjusting the denominator allows you to choose your level of precision
...
Variable declared in for-loop is local variable?
...< 5; i++)
{
}
// 'i' is only declared in the method scope now,
// no longer in the child scope -> valid.
i = 4;
// 'i' is declared in the method's scope -> valid.
int A = i;
}
EDIT:
The C# compiler could of course be changed to allow this code to compile ...
How does Go compile so quickly?
...in a really fast compiler working on 286-class hardware. I think that even now, modern Pascal compilers (e.g. FreePascal) are faster than Go compilers.
share
|
improve this answer
|
...
Executing periodic actions in Python [duplicate]
...ghtly:
import datetime, threading
def foo():
print datetime.datetime.now()
threading.Timer(1, foo).start()
foo()
Its output looks like this:
2013-08-12 13:05:36.483580
2013-08-12 13:05:37.484931
2013-08-12 13:05:38.485505
2013-08-12 13:05:39.486945
2013-08-12 13:05:40.488386
2013-08-12...