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Nullable Foreign Key bad practice?
Let's say you have a table Orders with a foreign key to a Customer Id. Now, suppose you want to add an Order without a Customer Id, (whether that should be possible is another question) you would have to make the foreign key NULL... Is that bad practice or would you rather work with a link table bet...
How to “comment-out” (add comment) in a batch/cmd?
...d to edit this file before running it! Check the instructions inside
ECHO Now press ctrl-c to interrupt execution or enter to continue
PAUSE
REM erase the section above once you have customised the file
python executed1.py
ECHO Skipping some stuff now
GOTO End
python skipped1.py
python skipped2.py
...
SVN best-practices - working in a team
I'm starting out with SVN. I know the basic commands and understand the base principles. I was wondering if anyone has any tips or best practices for working with Subversion in a team environment.
...
Swift: #warning equivalent
...this is that my app has two modes - development and production. I want to know that it builds clean in production, but I get a warning in development that essentially reminds me I'm in dev mode - using different URLs, timeouts, other settings etc. Arie's suggestion above lets me do this, your techni...
typeof for RegExp
...
awesome. do you know which is faster/more compatible: using your instanceof method or the constructor.name method? thanks!
– tau
Dec 2 '10 at 20:10
...
How to split one string into multiple strings separated by at least one space in bash shell?
...individual elements:
sentence="this is a story"
stringarray=($sentence)
now you can access individual elements directly (it starts with 0):
echo ${stringarray[0]}
or convert back to string in order to loop:
for i in "${stringarray[@]}"
do
:
# do whatever on $i
done
Of course looping thr...
What is the best way to detect a mobile device?
...ackberry|iemobile|opera mini/i.test(navigator.userAgent.toLowerCase()));
Now $.browser will return "device" for all above devices
Note: $.browser removed on jQuery v1.9.1. But you can use this by using jQuery migration plugin Code
A more thorough version:
var isMobile = false; //initiate as f...
How to create custom easing function with Core Animation?
... we're done
[animation setValues:values];
return(animation);
}
@end
Now usage will look something like this:
// define a parametric function
KeyframeParametricBlock function = ^double(double time) {
return(1.0 - pow((1.0 - time), 2.0));
};
if (layer) {
[CATransaction begin];
[CATran...
How to configure Sublime Text 2/3 to use direct Ctrl+Tab order and to create new tabs after the last
...
For people who don't know how to directly edit the sublime-keymap (like me): Click preferences -> Key Bindings - User. Copy above code in the file (between the brackets)
– Mathias711
Jan 13 '15 at 8:12
...
“aapt” IOException error=2, No such file or directory" why can't I build my gradle on jenkins?
...his helped get me by the same error I was having with aapt. Note ldd aapt now works, and shows dependencies. Previously it stated that the program wasn't a dynamic executable "not a dynamic executable". Now on to the next problem!
– guyland123
Aug 19 '14 at 1...