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NSLog/printf specifier for NSInteger?

...o use %zd for signed, %tu for unsigned, and %tx for hex. This information comes courtesy of Greg Parker. Original answer: The official recommended approach is to use %ld as your specifier, and to cast the actual argument to a long. ...
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Using CSS for a fade-in effect on page load

...All modern browsers and Internet Explorer 10 (and later): http://caniuse.com/#feat=css-animation Method 2: Alternatively, you can use jQuery (or plain JavaScript; see the third code block) to change the class on load: jQuery $("#test p").addClass("load");​ CSS #test p { opacity: 0; ...
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Rails detect if request was AJAX

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Eloquent Collection: Counting and Detect Empty

This may be a trivial question but I am wondering if Laravel recommends a certain way to check whether an Eloquent collection returned from $result = Model::where(...)->get() is empty, as well as counting the number of elements. ...
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WPF: How to display an image at its original size?

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How do I set a conditional breakpoint in gdb, when char* x points to a string whose value equals “he

...ynamic libraries get loaded. For source, google it and find: stackoverflow.com/questions/10000335/… :-) – Ciro Santilli 郝海东冠状病六四事件法轮功 Nov 13 '15 at 9:52 ...
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Validate uniqueness of multiple columns

... In Rails 4, this becomes: validates :user_id, uniqueness: {scope: :friend_id} – Marina Martin Jan 26 '14 at 18:36 ...
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Java unchecked: unchecked generic array creation for varargs parameter

...eation of an array at the calling site. So List<List<String>> combinations = Utils.createCombinations(cocNumbers, vatNumbers, ibans); is actually List<List<String>> combinations = Utils.createCombinations(new List<String>[]{cocNumbers, vatNumbers, ibans}); ...
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How to resize the AVD emulator (in Eclipse)?

... According to developer.android.com/studio/run/emulator-commandline -scale option is deprecated – ViliusK Sep 19 '18 at 11:27 ...
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How does Activity.finish() work in Android?

... Does it exits immediately or completes the function from which it was called ? The method that called finish() will run to completion. The finish() operation will not even begin until you return control to Android. ...