大约有 30,000 项符合查询结果（耗时：0.0615秒） [XML]
HTML table with fixed headers?
...m top table.
Remove the table header from bottom table.
Adjust the column widths. (We keep track of the original column widths)
Below is the code in a runnable demo.
function scrolify(tblAsJQueryObject, height) {
var oTbl = tblAsJQueryObject;
// for very large tables you can remove th...
Read whole ASCII file into C++ std::string [duplicate]
...t, you could find the file length the same was as in the char* example and call std::string::reserve to preallocate the necessary space.
– Tyler McHenry
Apr 8 '10 at 17:36
48
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Why do pthreads’ condition variable functions require a mutex?
.... That's why you need it locked before you do a wait.
The wait will "atomically" unlock the mutex, allowing others access to the condition variable (for signalling). Then when the condition variable is signalled or broadcast to, one or more of the threads on the waiting list will be woken up and th...
Is it safe to use Project Lombok? [closed]
... As a Lombok developer, I can say that generating javadoc is technically possible. Please participate in the google group if you've any bright ideas how to implement it. I mean, just generating a standard text is not that useful. Like getFoo, returns foo, setFoo sets the foo? How is that goi...
Android Shared preferences for creating one time activity (example) [closed]
...
apply() is asynchronous call to perform disk I/O where as commit() is synchronous. So avoid calling commit() from the UI thread.
– Aniket Thakur
Nov 10 '15 at 8:55
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Repeat String - Javascript
...nction(string, num){ return new Array(parseInt(num) + 1).join(string); };. Call it like this: String.repeat('/\', 20)
– Znarkus
Aug 31 '10 at 14:51
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ASP.NET MVC JsonResult Date Format
... answer.
The JSON spec does not account for Date values. MS had to make a call, and the path they chose was to exploit a little trick in the javascript representation of strings: the string literal "/" is the same as "\/", and a string literal will never get serialized to "\/" (even "\/" must be ma...
What is the use of a private static variable in Java?
...e you can't really say if this is a valid use case. Like, if the class was called Person, then it would probably be a bug, because you couldn't have multiple persons of different age (if that was an intended use case).
– DanMan
Mar 4 '15 at 14:32
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How to generate a random alpha-numeric string?
...ts 1. Time to the exact millisecond, when the code was seeded 2. Number of calls that have occurred so far 3. Atomicity for his own call (so that number of calls-so-far ramains same) If your attacker has all three of these things, then you have much bigger issue at hand...
– A...
What is the difference between Θ(n) and O(n)?
... even when people talk about O(g(n)) they actually mean Θ(g(n)) but technically, there is a difference.
More technically:
O(n) represents upper bound. Θ(n) means tight bound.
Ω(n) represents lower bound.
f(x) = Θ(g(x)) iff f(x) =
O(g(x)) and f(x) = Ω(g(x))
Basically when ...