大约有 15,400 项符合查询结果（耗时：0.0321秒） [XML]
Performance of FOR vs FOREACH in PHP
...
My personal opinion is to use what makes sense in the context. Personally I almost never use for for array traversal. I use it for other types of iteration, but foreach is just too easy... The time difference is going to be minimal in most cases.
The big thing to watch for is:
f...
Replacing .NET WebBrowser control with a better browser, like Chrome?
...atures browser controls for WPF and Winforms and has tons of features and extension points. Being based on Chromium it's blisteringly fast too.
Grab it from NuGet: Install-Package CefSharp.Wpf or Install-Package CefSharp.WinForms
Check out examples and give your thoughts/feedback/pull-requests: h...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...eed of std::copy over memcpy: 2.99%
My compiler is gcc 4.6.3 on Fedora 16 x86_64. My optimization flags are -Ofast -march=native -funsafe-loop-optimizations.
Code for my SHA-2 implementations.
I decided to run a test on my MD5 implementation as well. The results were much less stable, so I decide...
What is the Haskell response to Node.js?
... a disadvantage. I'd disagree with his position, particularly in the context of Haskell: I think the abstractions that threads provide are essential for making server code easier to get right, and more robust. In particular:
using one thread per connection lets you write code that expresses the ...
Using HTML5/Canvas/JavaScript to take in-browser screenshots
...on the client's browser. The HTML2Canvas script itself is still in a very experimental state, as it does not parse nearly as much of the CSS3 attributes I would want it to, nor does it have any support to load CORS images even if a proxy was available.
Still quite limited browser compatibility (not...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
...nly have to consider up to 4 consecutive pastes, since select, copy, paste x 5 is equivalent to select, copy, paste, select, copy, paste and the latter is better since it leaves us with more in the clipboard. Once we've reached n, we have the desired result.
The complexity might appear to be O(N), ...
What is the difference between class and instance attributes?
... answered Oct 16 '08 at 1:26
Alex CoventryAlex Coventry
55.1k44 gold badges3232 silver badges3737 bronze badges
...
Why does Ruby have both private and protected methods?
...s another instance's private methods directly.
Here is a quick practical example:
def compare_to(x)
self.some_method <=> x.some_method
end
some_method cannot be private here. It must be protected because you need it to support explicit receivers. Your typical internal helper methods can...
How do I style a dropdown with only CSS?
...re are three solutions:
Solution #1 - appearance: none - with Internet Explorer 10 - 11 workaround (Demo)
--
To hide the default arrow set appearance: none on the select element, then add your own custom arrow with background-image
select {
-webkit-appearance: none;
-moz-appearance: none;
...