大约有 40,700 项符合查询结果（耗时：0.0796秒） [XML]
Why is using the rails default_scope often recommend against?
...e on the internet people mention that using the rails default_scope is a bad idea, and the top hits for default_scope on stackoverflow are about how to overwrite it. This feels messed up, and merits an explicit question (I think).
...
python design patterns [closed]
...
Intermediate and Advanced Software Carpentry in Python
Code Like a Pythonista: Idiomatic Python
Python Idioms and Efficiency
Google Developers Day US - Python Design Patterns
Another resource is by example at the Python Recipes. A good number do not follow best practices but you can find some ...
How to pause / sleep thread or process in Android?
...
One solution to this problem is to use the Handler.postDelayed() method. Some Google training materials suggest the same solution.
@Override
public void onClick(View v) {
my_button.setBackgroundResource(R.drawable.icon);
Handler hand...
Handling exceptions from Java ExecutorService tasks
...se abrupt
termination, and the internal
exceptions are not passed to this
method.
When you submit a Runnable, it'll get wrapped in a Future.
Your afterExecute should be something like this:
public final class ExtendedExecutor extends ThreadPoolExecutor {
// ...
protected void aft...
How to obtain the last path segment of a URI
I have as input a string that is a URI . how is it possible to get the last path segment (that in my case is an id)?
12 An...
Force line-buffering of stdout when piping to tee
Usually, stdout is line-buffered. In other words, as long as your printf argument ends with a newline, you can expect the line to be printed instantly. This does not appear to hold when using a pipe to redirect to tee .
...
Cryptic “Script Error.” reported in Javascript in Chrome and Firefox
...pt that's hosted on a domain other than the domain of the current page.
This behavior is intentional, to prevent scripts from leaking information to external domains. For an example of why this is necessary, imagine accidentally visiting evilsite.com, that serves up a page with <script src="you...
Using Phonegap for Native Application development [closed]
...at the same time
having access to native features on phone. Also the code is portable from Android to Iphone with some effort. Before I plunge into it I want to know what is forum's experience with Phonegap. What are the pain points and is it really scalable for enterprise level application develop...
Press alt + numeric in bash and you get (arg [numeric]) what is that?
Press alt + numeric in bash and you get (arg [numeric]) what is that?
7 Answers
7
...
Is PHP's count() function O(1) or O(n) for arrays?
Does count() really count the all the elements of a PHP array, or is this value cached somewhere and just gets retrieved?
...