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Objective-C: Property / instance variable in category

...e, it wouldn't work. Fortunately, the Objective-C runtime has this thing called Associated Objects that can do exactly what you're wanting: #import <objc/runtime.h> static void *MyClassResultKey; @implementation MyClass - (NSString *)test { NSString *result = objc_getAssociatedObject(sel...
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Error executing command 'ant' on Mac OS X 10.9 Mavericks when building for Android with PhoneGap/Cor

...h of Mac OS X Mavericks anymore. Bulletproof solution: Download and install Homebrew by executing following command in terminal: ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" Install Apache Ant via Homebrew by executing brew install ant Run...
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Git Blame Commit Statistics

... path or modify your path and use it like git authors '*/*.c' # look for all files recursively ending in .c git authors '*/*.[ch]' # look for all files recursively ending in .c or .h git authors 'Makefile' # just count lines of authors in the Makefile Original Answer While the accepted answer d...
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Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”

... bigassforce 1571111 bronze badges answered Nov 19 '13 at 7:23 Jason CJason C 32.9k1111 gol...
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Can I set an opacity only to the background image of a div?

...n IE from version 8, while the ::before pseudo-element is not supported at all. This will hopefully be rectified in version 10. HTML <div class="myDiv"> Hi there </div> CSS .myDiv { position: relative; z-index: 1; } .myDiv:before { content: ""; position: absolut...
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Prevent jQuery UI dialog from setting focus to first textbox

...ts, under the title 'Focus'): Upon opening a dialog, focus is automatically moved to the first item that matches the following: The first element within the dialog with the autofocus attribute The first :tabbable element within the dialog's content The first :tabbable element withi...
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Get difference between 2 dates in JavaScript? [duplicate]

...day. As for always returning a positive number, that was a feature :) Typically when one talks about the number of days between two dates, that number is positive. If direction matters, just remove the Math.abs(). – TNi Jul 11 '10 at 22:38 ...
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design a stack such that getMinimum( ) should be O(1)

... EDIT: This fails the "constant space" constraint - it basically doubles the space required. I very much doubt that there's a solution which doesn't do that though, without wrecking the runtime complexity somewhere (e.g. making push/pop O(n)). Note that this doesn't change the complex...
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Automapper: Update property values without creating a new object

...ecause I was afraid of the learning curve impacting my schedule. I'm officially sorry I stayed away so long...it's much easier than I initially thought. – Neil T. Apr 8 '10 at 23:26 ...
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Animate scrollTop not working in firefox

... Firefox places the overflow at the html level, unless specifically styled to behave differently. To get it to work in Firefox, use $('body,html').animate( ... ); Working example The CSS solution would be to set the following styles: html { overflow: hidden; height: 100%; } body { ...