大约有 48,000 项符合查询结果（耗时：0.0567秒） [XML]
Is PHP's count() function O(1) or O(n) for arrays?
...unt the all the elements of a PHP array, or is this value cached somewhere and just gets retrieved?
3 Answers
...
How does Spring Data JPA differ from Hibernate for large projects?
...should stick with Hibernate for a new project, or get my feet wet with JPA and the new Spring Data implementation.
3 Answer...
What regular expression will match valid international phone numbers?
...rmat for matching a generic international phone number. I replaced the US land line centric international access code 011 with the standard international access code identifier of '+', making it mandatory. I also changed the minimum for the national number to at least one digit.
Note that if you en...
Service vs IntentService in the Android platform
... can be done with an IntentService that cannot be done with a Service (and vice-versa)?
11 Answers
...
Difference between SurfaceView and View?
... if you need to update GUI rapidly or if the rendering takes too much time and affects user experience then use SurfaceView.
share
|
improve this answer
|
follow
...
How to show Page Loading div until the page has finished loading?
...
I've needed this and after some research I came up with this (jQuery needed):
First, right after the <body> tag add this:
<div id="loading">
<img id="loading-image" src="images/ajax-loader.gif" alt="Loading..." />
</d...
Mongoose indexing in production code
Per the Mongoose documentation for MongooseJS and MongoDB / Node.js :
3 Answers
...
What is the maximum amount of RAM an app can use?
...quite curious about this question concerning the memory management of the Android operating system so I hope for a quite detailed answer on that topic.
...
How can I determine if a variable is 'undefined' or 'null'?
...}
Because null == undefined is true, the above code will catch both null and undefined.
share
|
improve this answer
|
follow
|
...
How to sort an array of objects with jquery or javascript [duplicate]
...s been known to break under certain browsers. I'm using IE8 for a project, and it doesn't work for this scenario.
– Paolo del Mundo
Aug 13 '12 at 14:30
1
...