大约有 16,000 项符合查询结果（耗时：0.0215秒） [XML]
How to sort a list in Scala by two fields?
...
It's interesting to think about the performance of this vs. a single sortBy that creates a tuple. With this approach you obviously don't have to create those tuples, but with the tuple approach you only have to compare first name...
When is JavaScript's eval() not evil?
... (for spreadsheet-like functionality). Having parsed the formula I could convert it into JavaScript and run eval() on it to yield the result.
...
How to remove all callbacks from a Handler?
...nable myRunnable = new Runnable() {
public void run() {
//Some interesting task
}
};
You can call myHandler.postDelayed(myRunnable, x) to post another callback to the message queue at other places in your code, and remove all pending callbacks with myHandler.removeCallbacks(myRunna...
Should functions return null or an empty object?
...
Returning null is usually the best idea if you intend to indicate that no data is available.
An empty object implies data has been returned, whereas returning null clearly indicates that nothing has been returned.
Additionally, returning a null will result in a null ex...
How does zip(*[iter(s)]*n) work in Python?
... i.e. a list of length n, where each element is x. *arg unpacks a sequence into arguments for a function call. Therefore you're passing the same iterator 3 times to zip(), and it pulls an item from the iterator each time.
x = iter([1,2,3,4,5,6,7,8,9])
print zip(x, x, x)
...
Limitations of Intel Assembly Syntax Compared to AT&T [closed]
...ay Devil's Advocate and suggest that you could simply script vim into auto-converting *.s files to the syntax of your choice.
– bug
Sep 7 '12 at 1:50
2
...
How to override and extend basic Django admin templates?
...
For reference; the snippet in question has been converted to a django app, and is available in PyPi (pip/easy_install) as django-apptemplates: pypi.python.org/pypi/django-apptemplates
– Romløk
Oct 9 '12 at 9:19
...
Integrate ZXing in Android Studio
...
I was integrating ZXING into an Android application and there were no good sources for the input all over, I will give you a hint on what worked for me - because it turned out to be very easy.
There is a real handy git repository ...
HTML minification? [closed]
...e rules:
All HTML comments are removed
Runs of white space characters are converted to single space characters
Unnecessary white space characters inside tags are removed
White space characters between two tags where one of these two tags is not a singleton is removed
All content inside a style tag ...
What is the need of JSF, when UI can be achieved with JavaScript libraries such as jQuery and Angula
...oves the need of all the boilerplate of gathering HTTP request parameters, converting/validating them, updating the model values, executing the right Java method to do the business stuff and generating the HTML/CSS/JS boilerplate code. With JSF you basically end up with a XHTML page as view definiti...