大约有 47,000 项符合查询结果（耗时：0.0697秒） [XML]
Difference between binary semaphore and mutex
...perspective, mutex are more like state-pattern where the algorithm that is selected by the state can change the state. The binary-semaphore are more like strategy pattern where the external algorithm can change the state and eventually the algorithm/strategy selected to run.
– ...
Table fixed header and scrollable body
...ad (e) {
const el = e.target,
sT = el.scrollTop;
el.querySelectorAll("thead th").forEach(th =>
th.style.transform = `translateY(${sT}px)`
);
}
document.querySelectorAll(".tableFixHead").forEach(el =>
el.addEventListener("scroll", tableFixHead)
);
...
Is using Random and OrderBy a good shuffle algorithm?
...e naive version). Durstenfeld/Knuth achieve O(n) not by assignment, but by selection from a decreasing set and swapping. This way the random number selected may repeat and the algorithm only takes O(n).
– tvanfosson
Aug 17 '09 at 12:18
...
Why does this async action hang?
...DBConnection.ExecuteAsync<ResultClass>(
ds => ds.Execute("select slow running data into result"));
}
What's the difference? There's now no awaiting anywhere, so nothing being implicitly scheduled to the UI thread. For simple methods like these that have a single return, there's no...
How can I generate a diff for a single file between two branches in github
...GITHUB WEB Page for previous checkin.
Go to that file in the github, then select HISTORY. This will open page with list of checkin comments link like below.
On clicking on it will show the code changes. After clicking the history; you can click on packages to see package level all files checkins...
Design patterns or best practices for shell scripts [closed]
...NCNAME"
return 1
fi
local name=`$p_Table__mysql_exec "SELECT name FROM table WHERE id = '$id'"`
if test $? != 0 ; then
EXCEPTION=$Table__MySqlException
EXCEPTION_MSG="unable to perform select"
EXCEPTION_FUNC="$FUNCNAME"
return 1
fi
...
How do I build a graphical user interface in C++? [closed]
...ack to the operating system (usually with some kind of special "sleep" or "select" or "yield" function call)
then the yield function will return when the operating system is done, and you have another go around the loop.
There are plenty of resources about event based programming. If you have any ...
RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
...k!)
In the bar.com S3 Bucket go to Properties > Static Website Hosting, select Redirect all requests to another host name and enter foo.com in the text box.
Back in Route 53, in your Hosted Zone for bar.com, click Create Record Set. Select A - IPv4 address for type. Click Yes for Alias. Click the...
Truncating long strings with CSS: feasible yet?
...ion. It does come with the downside however of not allowing the text to be selected in Firefox. Check out his guest post on Matt Snider's blog for the full details on how this works.
Note this technique also prevents updating the content of the node in JavaScript using the innerHTML property in Fir...
Optimistic vs. Pessimistic locking
...stay unmodified for the duration, it's as accurate as pessimistic locking (select for update style) on those same records. The main difference is that optimistic locking incurs overhead only if there's a conflict, whereas pessimistic locking has reduced overhead on conflict. So optimistic is best ...