大约有 47,000 项符合查询结果（耗时：0.0496秒） [XML]
Rails: around_* callbacks
I have read the docum>me m>ntation at http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html , but don't understand when the around_* callbacks are triggered in relation to before_* and after_* .
...
jQuery selectors on custom data attributes using HTML5
...like to know what selectors are available for these data attributes that com>me m> with HTML5.
4 Answers
...
Rebuild IntelliJ project indexes
IntelliJ IDEA 10.5.1 is reporting zero usages for all m>me m>thod, classes etc.
2 Answers
...
Case in Select Statem>me m>nt
I have an SQL statem>me m>nt that has a CASE from SELECT and I just can't get it right. Can you guys show m>me m> an example of CASE where the cases are the conditions and the results are from the cases. For example:
...
Please enter a commit m>me m>ssage to explain why this m>me m>rge is necessary, especially if it m>me m>rges an upd
I am using Git. I did a pull from a remote repo and got an error m>me m>ssage:
8 Answers
8
...
Prevent strace from abbreviating argum>me m>nts?
... use strace to find out what commands a program executes using execve . Som>me m> of the argum>me m>nts in these commands are quite long, and strace is abbreviating the argum>me m>nts to execve (I see "..." after about 30 characters), preventing m>me m> from getting any useful information. How can I get the full tex...
How to make the tab character 4 spaces instead of 8 spaces in nano?
...you already got a file with tabs and want to convert them to spaces i recomm>me m>nd the expandcommand (shell):
expand -4 input.py > output.py
share
|
improve this answer
|
f...
How to write iOS app purely in C
...
Damn, it took m>me m> a while but I got it:
main.c:
#include <CoreFoundation/CoreFoundation.h>
#include <objc/runtim>me m>.h>
#include <objc/m>me m>ssage.h>
// This is a hack. Because we are writing in C, we cannot out and include
...
How to pass argum>me m>nts and redirect stdin from a file to program run in gdb?
...
Pass the argum>me m>nts to the run command from within gdb.
$ gdb ./a.out
(gdb) r < t
Starting program: /dir/a.out < t
share
|
improv...
Java RegEx m>me m>ta character (.) and ordinary dot?
In Java RegEx, how to find out the difference between . (dot) the m>me m>ta character and the normal dot as we using in any sentence. How to handle this kind of situation for other m>me m>ta characters too like ( * , + , \d ,...)
...