大约有 40,000 项符合查询结果（耗时：0.0322秒） [XML]
Initialize a byte array to a certain value, other than the default null? [duplicate]
...h is what was asked) but I don't know that this means better. :) As always test performance if relevant. ;-)
– Chris
May 27 '11 at 9:25
1
...
Is there a /dev/null on Windows?
...console - or even a file - can take a significant chunk of time. I've just tested it with a program writing "Hello there" to stdout 10000000 times. Redirecting to a file (on an SSD) took 18 seconds. Redirecting to NUL took 4 seconds. Not redirecting at all made me give up through a lack of patience ...
How do I check if a column is empty or null in MySQL?
... '' = ' ' works in SQLServer but not in SQLite, as far as I can tell, from testing it now.
– Magne
Oct 3 '17 at 9:59
add a comment
|
...
delete vs delete[] operators in C++
...tor delete[] is distinguished but delete operator can release array too.
test* a = new test[100];
delete a;
And already checked this code have no memeory leak.
share
|
improve this answer
...
How do I add a linker or compile flag in a CMake file?
...I try to compile a simple "Hello, World!" program it compiles fine. When I test it by adding a simple exception handling in that code it works too (after adding -fexceptions .. I guess it is disabled by default).
...
Overflow-x:hidden doesn't prevent content from overflowing in mobile browsers
... Sorry that it didn't work out for you. Before I answered I made a quick test using your site and applying my suggestion to your css. It fixed the problem for the standard- and dolphin browser on my android phone at least.
– subarachnid
Jan 11 '13 at 3:11
...
Warning :-Presenting view controllers on detached view controllers is discouraged
...
I'm getting this error when running unit/integration tests where I don't test with animations.
– mixtly87
Oct 19 '16 at 20:56
add a comment
...
Iterate over each line in a string in PHP
...lse) {
# do something with $line
$line = strtok( $separator );
}
Testing the performance, I iterated 100 times over a test file with 17 thousand lines: preg_split took 27.7 seconds, whereas strtok took 1.4 seconds.
Note that though the $separator is defined as "\r\n", strtok will separate...
Why is setTimeout(fn, 0) sometimes useful?
...rgument will schedule the callback to be run asynchronously, after the shortest possible delay - which will be around 10ms when the tab has focus and the JavaScript thread of execution is not busy.
The OP's solution, therefore was to delay by about 10ms, the setting of the selected index. This gave...
How to simulate the environment cron executes a script with?
...tup. Is there a way to invoke bash(?) in the same way cron does so I could test scripts before installing them?
13 Answers
...