大约有 31,840 项符合查询结果（耗时：0.0413秒） [XML]
Preloading images with jQuery
...;
});
}
// Usage:
preload([
'img/imageName.jpg',
'img/anotherOne.jpg',
'img/blahblahblah.jpg'
]);
Or, if you want a jQuery plugin:
$.fn.preload = function() {
this.each(function(){
$('<img/>')[0].src = this;
});
}
// Usage:
$(['img1.jpg','img2.jpg','img3....
Sorting an array of objects by property values
...
One issue I have with this is that with reverse=false, it will sort numbers as 1,2,3,4... but Strings as z,y,x...
– Abby
Apr 26 '12 at 13:42
...
How can I combine two HashMap objects containing the same types?
...
If you get a NPE, then apparently you did not initialize one of your objects properly. Do you print the stacktrace in the catch block? So you know where the problem arises. But unless you post the full and exact code including the stack trace you will need to track that down on you...
When is JavaScript's eval() not evil?
...ll compute the result during the parse rather than run another parser (the one inside eval()). But it may be easier to code using eval(), and the performance hit will probably be unnoticeable. It looks like eval() in this case is no more evil than any other function that could possibly save you some...
MIN/MAX vs ORDER BY and LIMIT
Out of the following queries, which method would you consider the better one? What are your reasons (code efficiency, better maintainability, less WTFery)...
...
Why does std::getline() skip input after a formatted extraction?
...ty of your program, it follows that it must be skipped or ignored somehow. One option is to call std::cin.ignore() after the the first extraction. It will discard the next available character so that the newline is no longer in the way.
std::getline(std::cin.ignore(), state)
In-Depth Explanation:
...
Does MySQL index foreign key columns automatically?
...million records. This is ofc MySQL 5.1 InnoDB. The table has three fields, one is primary key integer, the other is already indexed. The third was a foreign key to primary key of another table. Without adding an explicit index, lookups took several seconds here. Show index from table also didn't sho...
Optimal number of threads per core
...t number of threads until you find the right number for your application.
One thing for sure: 4k threads will take longer. That's a lot of context switches.
share
|
improve this answer
|
...
What is the fastest way to get the value of π?
...
The Monte Carlo method, as mentioned, applies some great concepts but it is, clearly, not the fastest, not by a long shot, not by any reasonable measure. Also, it all depends on what kind of accuracy you are looking for. The fastest π I know of is the one ...
What are free monads?
...erm Free Monad pop up every now and then for some time, but everyone just seems to use/discuss them without giving an explanation of what they are. So: what are free monads? (I'd say I'm familiar with monads and the Haskell basics, but have only a very rough knowledge of category theory.)
...