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What are fail-safe & fail-fast Iterators in Java
...e usual java.util conventions in that their Iterators and Spliterators provide weakly consistent rather than fast-fail traversal."
Typically, weak consistency means that if a collection is modified concurrently with an iteration, the guarantees of what the iteration sees are weaker. (The details ...
Count work days between two dates
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For workdays, Monday to Friday, you can do it with a single SELECT, like this:
DECLARE @StartDate DATETIME
DECLARE @EndDate DATETIME
SET @StartDate = '2008/10/01'
SET @EndDate = '2008/10/31'
SELECT
(DATEDIFF(dd, @StartDate, @EndDate) + 1)
-(DA...
How to calculate md5 hash of a file using javascript
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@John Well, my statement does not rule this out. Client-side checks strictly are for user convenience (and thus more or less optional, depending on how convenient you want to make it). Server-side checks on the other hand are mandatory.
– Tomalak
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What is “(program)” in Chrome debugger’s profiler?
...root of the tree.
See this thread:
https://bugs.webkit.org/show_bug.cgi?id=88446
So, more like system calls than like main().
Apparently it includes idle time. Also, some profiling of (program) is available from chrome://profiler/
...
How to display HTML in TextView?
...o comes with some margin. if you don't want the gap, you might want to consider using other html elements.
– David Hedlund
Jan 22 '10 at 10:58
10
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Xcode changes unmodified storyboard and XIB files
...Open the storyboard file, and find something like this
<viewController id=”ory-XY-OBM” sceneMemberID=”MyController1”>.
You can safely commit only changes in this section and ignore everything else. If you changed segues or constraints, also commit anything that has “ory-XY-OBM” in...
BeautifulSoup Grab Visible Webpage Text
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For recent BS4 (at least) you could identify comments with isinstance(element, Comment) instead of matching with a regex.
– tripleee
Oct 2 '13 at 12:48
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Difference between std::result_of and decltype
...with result_of without using binders or lambdas
– David Rodríguez - dribeas
Dec 22 '11 at 9:19
2
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How to disable back swipe gesture in UINavigationController on iOS 7
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You can enable / disable recognizer on viewDidAppear: / viewDidDisappear. Or, you can implement UIGestureRecognizerDelegate protocol with your more complex logic and set it as recognizer.delegate property.
– ArtFeel
Nov 25 '13 ...
Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...其父进程终止，则可以使用下面的循环方式：
while(getppid() != 1)
sleep(1);
这种循环称为轮询（polling），由于所有的进程都共有一个最原始的父进程init，其pid为1，所以每隔1秒查询一次父进程状态，直至父进程终止。
以上...