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Run a callback only if an attribute has changed in Rails
I have the following association in my app:
3 Answers
3
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How do you serve a file for download with AngularJS or Javascript?
... window.webkitURL).createObjectURL( blob );
in order to enable the URL:
app = angular.module(...);
app.config(['$compileProvider',
function ($compileProvider) {
$compileProvider.aHrefSanitizationWhitelist(/^\s*(https?|ftp|mailto|tel|file|blob):/);
}]);
Please note that
Each tim...
UITextView that expands to text using auto layout
...ODE 11/ iOS13, set constraint constant when text view value set in viewWillAppear and update in textViewDidChange.
– ptc
Feb 7 at 5:30
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Add swipe to delete UITableViewCell
I am making a CheckList application with a UITableView . I was wondering how to add a swipe to delete a UITableViewCell .
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Should I compile with /MD or /MT?
...aries that have been built with different runtime options, /MT in the main application tends to cause conflicts much more often than /MD (because you'll run into trouble if the C runtime is statically-linked multiple times, especially if they are different versions).
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Convert PDF to clean SVG? [closed]
...hs, too. I also find that they often lose the font data, but don't seem to approximate a good, installed font. How does PDF display it if SVG can't?
– DanRedux
Apr 23 '12 at 21:30
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How to generate keyboard events in Python?
...__name__ == "__main__":
AltTab()
hexKeyCode is the virtual keyboard mapping as defined by the Windows API. The list of codes is available on MSDN: Virtual-Key Codes (Windows)
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improve t...
Binding to static property
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This answer is more appropriate to my case because I don't want to introduce DependencyObject to my source class. Thanks for the tip!
– Anthony Brien
Jun 2 '09 at 15:30
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Where does Chrome store extensions?
... your default directory and Extensions Folder is where all the extensions, apps, themes are stored
Ex:
Windows
If my Profile Path is %userprofile%\AppData\Local\Google\Chrome\User Data\Default then my storage directory is:
C:\Users\<Your_User_Name>\AppData\Local\Google\Chrome\User Data\Def...
Is there a replacement for unistd.h for Windows (Visual C)?
...or Windows, they probably don't work for sockets. You need to look at your app and consider whether to call e.g. closesocket(). */
#ifdef _WIN64
#define ssize_t __int64
#else
#define ssize_t long
#endif
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
/* should be in some equ...