大约有 47,000 项符合查询结果（耗时：0.0963秒） [XML]
How to use concerns in Rails 4
...4 project generator now creates the directory "concerns" under controllers and models. I have found some explanations about how to use routing concerns, but nothing about controllers or models.
...
Error: “dictionary update sequence element #0 has length 1; 2 is required” on Django 1.4
...nts to parse the given positional argument as the keyword argument kwargs, and since a string is an iterable, an atypical code path begins to unfold. Always use name= on your urls!
share
|
improve t...
Can I replace groups in Java regex?
I have this code, and I want to know, if I can replace only groups (not all pattern) in Java regex.
Code:
7 Answers
...
Error 'LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt' after
I've installed Visual Studio 2012 Release Preview, and it appears to be fine, but now when I try to use Visual Studio 2010 to compile C++ projects, I get the following error message:
...
What's Pros and Cons: putting javascript in head and putting just before the body close
Most of javascript and web development books/articles says that you must put CSS in the head tag and javascript at the bottom of the page.
...
What are all codecs and formats supported by FFmpeg?
I need a list of codecs and formats supported by FFmpeg. Where can I find it?
4 Answers
...
Flask vs webapp2 for Google App Engine
I'm starting new Google App Engine application and currently considering two frameworks: Flask and webapp2 . I'm rather satisfied with built-in webapp framework that I've used for my previous App Engine application, so I think webapp2 will be even better and I won't have any problems with it.
...
Hidden features of Ruby
...actually wrote an gem at one point to do this, but my code was (a) a mess, and (b) slow. I'm very glad that the functionality has made it into core.
– James A. Rosen
Dec 14 '09 at 13:47
...
Unescape HTML entities in Javascript?
...of a div reduces the XSS vulnerability, but it is still problematic in IE9 and Firefox.
function htmlDecode(input){
var e = document.createElement('textarea');
e.innerHTML = input;
// handle case of empty input
return e.childNodes.length === 0 ? "" : e.childNodes[0].nodeValue;
}
htmlDecode...
How can the Euclidean distance be calculated with NumPy?
...roduction to Data Mining
This works because Euclidean distance is l2 norm and the default value of ord parameter in numpy.linalg.norm is 2.
share
|
improve this answer
|
f...