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Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...ormation:
for blink browsers slice() is the fastest method, concat() is a bit slower, and while loop is 2.4x slower.
for other browsers while loop is the fastest method, since those browsers don't have internal optimizations for slice and concat.
This remains true in Jul 2016.
Below are simple s...
What is :: (double colon) in Python when subscripting sequences?
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10 Answers
10
Active
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How to pass table value parameters to stored procedure from .net code
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Maybe a bit pedantic, but I'd use IEnumerable instead of List in the signature, that way you can pass anything that is IEnumerable, not just lists, Since you're not using any function specific to List, I don't really see a reason not...
Is it possible to make a type only movable and not copyable?
...owing pointers, e.g. if you have (&usize, u64), it is 16 bytes on a 64-bit computer, and a shallow copy would be taking those 16 bytes and replicating their value in some other 16-byte chunk of memory, without touching the usize at the other end of the &. That is, it's equivalent to calling ...
What is a message pump?
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A message loop is a small piece of code that exists in any native Windows program. It roughly looks like this:
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
The GetMessage() Win32 API retrieves a message from Windo...
Callback functions in C++
...p;foo;
The using declaration gives us the option to make things a little bit more readable, since the typedef for f_int_t can also be written as:
using f_int_t = int(*)(int);
Where (at least for me) it is clearer that f_int_t is the new type alias and recognition of the function pointer type is...
What is the tilde (~) in the enum definition?
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~ is the unary one's complement operator -- it flips the bits of its operand.
~0 = 0xFFFFFFFF = -1
in two's complement arithmetic, ~x == -x-1
the ~ operator can be found in pretty much any language that borrowed syntax from C, including Objective-C/C++/C#/Java/Javascript.
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Can I change the checkbox size using CSS?
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-o-transform: scale(2); /* Opera */
transform: scale(2);
padding: 10px;
}
/* Might want to wrap a span around your checkbox text */
.checkboxtext
{
/* Checkbox text */
font-size: 110%;
display: inline;
}
<input type="checkbox" name="optiona" id="opta" checked />
<...
Maven Install on Mac OS X
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OS X prior to Mavericks (10.9) actually comes with Maven 3 built in.
If you're on OS X Lion, you won't have java installed by default. Just run java by itself and it'll prompt you to install it.
Assuming qualifications are met, run mvn -version ...
pinterest api documentation [closed]
...king forward to have an API. Now I just have to scrape html and parse it a bit. But there is no date to sort on or whatsoever
– JP Hellemons
Jan 9 '13 at 10:24
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