大约有 48,000 项符合查询结果（耗时：0.0620秒） [XML]
What happens to C# Dictionary lookup if the key does not exist?
...corresponding value
}
else
{
// Key wasn't in dictionary; "value" is now 0
}
(Using ContainsKey and then the the indexer makes it look the key up twice, which is pretty pointless.)
Note that even if you were using reference types, checking for null wouldn't work - the indexer for Dictionary...
How to disable anchor “jump” when loading a page?
... delete hash so the page won't scroll to it
window.location.hash = "";
// now whenever you are ready do whatever you want
// (in this case I use jQuery to scroll to the tag after the page has loaded)
$(window).on('load', function() {
if (target) {
$('html, body').animate({
s...
What optimizations can GHC be expected to perform reliably?
GHC has a lot of optimizations that it can perform, but I don't know what they all are, nor how likely they are to be performed and under what circumstances.
...
Benefits of inline functions in C++?
...1.019s 5:52.31 99.1% 0+0k 0+0io 0pf+0w This is a good example were common knowledge is wrong.
– Martin York
Sep 28 '08 at 20:38
36
...
Java optional parameters
...null ? b : 0;
c = c != null ? c : 0;
//...
}
foo("a", null, 2);
Now all arguments values must be provided, but the default ones may be null.
Optional class. This approach is similar to nulls, but uses Java 8 Optional class for parameters that have a default value:
void foo(String a, Opti...
What is SQL injection? [duplicate]
...erabilities because attackers can send values to an application that they know will be interpolated into a SQL string. By being very clever, they can manipulate the result of queries, reading data or even changing data that they shouldn't be allowed to do.
Example in PHP:
$password = $_POST['pass...
Why doesn't Mockito mock static methods?
...o think mocking tools should give you what you need without assuming they know what's better for you. For example, if I was using a third party library that utilized a static method call that I needed to mock, it would be nice to be able to do so. The idea that a mock framework won't provide you s...
fastest (low latency) method for Inter Process Communication between Java and C/C++
...th taskset:
TCP - 25 microseconds
Named pipes - 15 microseconds
Now explicitly specifying core masks, like taskset 1 java Srv or taskset 2 java Cli:
TCP, same cores: 30 microseconds
TCP, explicit different cores: 22 microseconds
Named pipes, same core: ...
Select2 dropdown but allow new values by user?
...taken from an answer on the select2 mailing list, but cannot find the link now)
share
|
improve this answer
|
follow
|
...
How to remove “index.php” in codeigniter's path
...me controller. was excited for a second then. trying the other suggestions now.
– jsky
Aug 14 '13 at 11:37
add a comment
|
...