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Understanding reference counting with Cocoa and Objective-C
...easing the string on to the thread's NSAutoreleasePool, which will
// happen at some later time. The consequence is that the returned string
// will still be valid for the caller of this function.
return [s autorelease];
}
I realize all of this is a bit confusing - at some point, tho...
Avoiding SQL injection without parameters
...mptions you make about security, might be incorrect. As secure as your own approach may look (and it looks shaky at best), there's a risk you're overlooking something and do you really want to take that chance when it comes to security?
Use parameters.
...
Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?
...a new Java EE project today which is to be finished in about a year, which application server would you choose and why?
9 A...
Good Java graph algorithm library? [closed]
...best choice. I really liked using its API, when I quickly had to write an app that was working on graph and displaying it later.
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jQuery - prevent default, then continue default
...nd you do the things you want to do before returning (true), these things happen prior to the actual submission.
For example:
$('form').submit(function(){
alert('I do something before the actual submission');
return true;
});
Simple example
Another example on jquery.com: http://api.jque...
What is the difference between i++ and ++i?
...ore it in i, then tell me the original saved value". That is, the telling happens after the incrementing, not before as you have stated it. Consider the second statement. i++ actually means "save the value, increment it, store it in i, and tell me the incremented value". The way you said it makes it...
How to pass the password to su/sudo/ssh without overriding the TTY?
...
I wrote some Applescript which prompts for a password via a dialog box and then builds a custom bash command, like this:
echo <password> | sudo -S <command>
I'm not sure if this helps.
It'd be nice if sudo accepted a pre-e...
How ListView's recycling mechanism works
...nd other problems like returning convert view even before scrolling won't happen, i have test this myself, unless my listview was inside the lineaLayout it was also having problems like repeating view call and convert view as, putting Listview inside LinearLayout worked like magic for me.(didn't kno...
How do I use spaces in the Command Prompt?
...the use of white space characters, for example, when I need to access the app xyz which location is :
C:\Program Files\ab cd\xyz.exe
To run this from windows cmd prompt, you need to use
C:\"Program Files"\"ab cd"\xyz.exe
or
"C:\Program Files\ab cd\xyz.exe"
...
Mechanisms for tracking DB schema changes [closed]
...ations typically have two methods: an "up" method in which the changes are applied and a "down" method in which the changes are undone. A single command brings the database up to date, and can also be used to bring the database to a specific version of the schema. In Rails, migrations are kept in th...